This page lists 592 electrical connector parts for the 2005 Buick Lacrosse, across 143 part types, covering both the 3.6L V6 and the 3.8L V6. Every part shows its brand, manufacturer part number and fitment notes.
On the 2005 Buick Lacrosse, the connector system supplies the pigtails and connector bodies that terminate the vehicle harness at lamps, sensors and modules. 57 parts of the 592 listed are Blower Motor Control Module / Resistor Connector (26 parts), Camshaft Position Sensor Connector (16 parts) and Fuel Injector Connector (15 parts). The other 140 part types cover the remaining 535 parts.
The 2005 Buick Lacrosse was sold with both the 3.6L V6 and the 3.8L V6. Every part on this page is engine-specific. Each part shows which engine(s) it fits.
The most listed brands for 2005 Buick Lacrosse electrical connector parts are STANDARD MOTOR PRODUCTS (145 parts), GM GENUINE (141 parts) and WELLS (119 parts), plus 18 more brands. Quality grades include Economy and Standard Replacement.
103 parts on this 2005 Buick Lacrosse page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including GM GENUINE PT209 (A/C Compressor Clutch Coil Connector) and ROSTRA 610021 (A/C Refrigerant Pressure Switch Connector). Click any part number to see every vehicle that part fits.
A/C Compressor Clutch Coil Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Popular Fits: 3.8L V6 | PT209 | 🇺🇸 US 🇨🇦 CA | Gray2-Way Female | View on Amazon |
| ROSTRA Popular Fits: 3.8L V6 | 610062 | 🇺🇸 US | with Oval Connectorwith 2 Terminal(s) | View on Amazon |
| ACDELCO Fits: 3.8L V6 | PT2311 | 🇺🇸 US 🇨🇦 CA | GoldColor: Gray | View on Amazon |
| FOUR SEASONS Fits: 3.8L V6 | 70048 | 🇺🇸 US | 2 Terminal Malewithout Diode | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | HP4490 | 🇺🇸 US | HandypackTerminal Type: Blade | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S588 | 🇺🇸 US | Attachment Method: Push OnConnector Shape: Oval | View on Amazon |
| UNITED MOTOR PRODUCTS Fits: 3.8L V6 | CON97 | 🇺🇸 US | Terminal Type: Blade | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P1239 | 🇺🇸 US | Wiring Harness Length: 8.25 In | View on Amazon |
This table covers the harness connectors at the A/C Compressor Clutch Coil. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
8 A/C Compressor Clutch Coil Connector parts are listed for the 2005 Buick Lacrosse, from STANDARD MOTOR PRODUCTS, GM GENUINE, ROSTRA and 4 other brands. GM GENUINE PT209 carries the "Popular" badge.
This group includes GM GENUINE PT209, ROSTRA 610062 and ACDELCO PT2311 and the remaining parts above.
A/C Refrigerant Pressure Switch Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ROSTRA Popular Fits: 3.8L V6 | 610021 | 🇺🇸 US | with 3 Terminal(s)with 1 Male Connectors | View on Amazon |
| STANDARD MOTOR PRODUCTS Popular Fits: 3.8L V6 | HP4440 | 🇺🇸 US | Handypack | View on Amazon |
| ACDELCO Fits: 3.8L V6 | PT2319 | 🇺🇸 US 🇨🇦 CA | GoldTerminal Gender: Female | View on Amazon |
| FOUR SEASONS Fits: 3.8L V6 | 37236 | 🇺🇸 US | 3 Terminal Male | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | PT3829 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| ROSTRA Fits: 3.8L V6 | 610225 | 🇺🇸 US | View on Amazon | |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S619 | 🇺🇸 US | Connector Shape: RoundTerminal Type: Blade | View on Amazon |
| UNITED MOTOR PRODUCTS Fits: 3.8L V6 | CON110 | 🇺🇸 US | with Round Connector | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P1065 | 🇺🇸 US | Terminal Gender: Female | View on Amazon |
This table covers the harness connectors at the A/C Refrigerant Pressure Switch. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
9 A/C Refrigerant Pressure Switch Connector parts for the 2005 Buick Lacrosse come from 7 brands — ROSTRA, STANDARD MOTOR PRODUCTS, ACDELCO and 4 other brands. The "Popular" part is ROSTRA 610021.
This group includes ROSTRA 610021, STANDARD MOTOR PRODUCTS HP4440 and ACDELCO PT2319 and the remaining parts above.
ABS Control Module Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 | 15776487 | 🇺🇸 US 🇨🇦 CA | Rear, Includes Speed Sensor Connectors | View on Amazon |
This table covers the harness connectors at the ABS Control Module. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
This group shows a single part: GM GENUINE 15776487.
ABS Modulator Relay Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 | PT1205 | 🇺🇸 US 🇨🇦 CA | GrayExc. Lamp Group(TR9) | View on Amazon |
This table covers the harness connectors at the ABS Modulator Relay. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
One part is listed for the 2005 Buick Lacrosse — GM GENUINE PT1205.
ABS Wheel Speed Sensor Connector
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SKP Popular Fits: 3.8L V6 | SK970040 | 🇺🇸 US | Fits Front Right | View on Amazon |
| SKP Fits: 3.8L V6 | SKS811 | 🇺🇸 US | Fits Position-Outeror Not Adjustable1 Chain Row | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 | 12167117 | 🇺🇸 US 🇨🇦 CA | Gray2-Way Female | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Popular Fits: 3.8L V6 | 970040 | 🇺🇸 US | ABS Harness | View on Amazon |
| HOLSTEIN Popular Fits: 3.8L V6 | 2ABS0485 | 🇺🇸 US | Front | View on Amazon |
| ACDELCO Fits: 3.8L V6 | PT2309 | 🇺🇸 US 🇨🇦 CA | Gold | View on Amazon |
| ACDELCO Fits: 3.8L V6 | PT1373 | 🇺🇸 US 🇨🇦 CA | GM Original Equipment | View on Amazon |
| FAMOUS BRAND Fits: 3.8L V6 | NBC1001 | 🇺🇸 US 🇨🇦 CA | Front LeftABS Connector | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | 10340318 | 🇺🇸 US 🇨🇦 CA | Front Right | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | HP4750 | 🇺🇸 US | HandypackConnector Shape: Oval | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S578 | 🇺🇸 US | Connector Shape: OvalGauge: 18 | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | ALH73 | 🇺🇸 US | Rear | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P2244 | 🇺🇸 US | Front Left | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P1570 | 🇺🇸 US | Rear | View on Amazon |
This table covers the harness connectors at each ABS wheel-speed sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
14 ABS Wheel Speed Sensor Connector parts are listed for the 2005 Buick Lacrosse, from STANDARD MOTOR PRODUCTS, SKP, GM GENUINE and 5 other brands. SKP SK970040 carries the "Popular" badge.
In the Economy grade, SKP supplies 2 parts: the catalog's value-priced group. A representative part number is SKP SK970040.
The Standard Replacement section lists 1 option from GM GENUINE — built to original-equipment specification. GM GENUINE 12167117 is listed in this group.
11 ungrouped parts are not assigned to a grade, with the same engine-level match.
Accelerator Pedal Position Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S1479 | 🇺🇸 US | Connector Shape: OvalLength (In): 1.125 | View on Amazon |
| UNITED MOTOR PRODUCTS Fits: 3.8L V6 | CON23 | 🇺🇸 US | View on Amazon | |
| WELLS Fits: 3.8L V6 | 1P1599 | 🇺🇸 US | with 6 Terminals | View on Amazon |
This table covers the harness connectors at the Accelerator Pedal Position Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
3 Accelerator Pedal Position Sensor Connector parts are listed for the 2005 Buick Lacrosse, from STANDARD MOTOR PRODUCTS, UNITED MOTOR PRODUCTS and WELLS.
Part numbers include STANDARD MOTOR PRODUCTS S1479, UNITED MOTOR PRODUCTS CON23 and WELLS 1P1599.
Accessory Delay Relay Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| UNITED MOTOR PRODUCTS Popular Fits: 3.8L V6 | CON164 | 🇺🇸 US | Terminal Gender: FemaleTerminal Quantity: 5 | View on Amazon |
| ACDELCO Fits: 3.8L V6 | PT2371 | 🇺🇸 US 🇨🇦 CA | GoldShape: Square | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | HP4655 | 🇺🇸 US | HandypackConnector Shape: Square | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S803 | 🇺🇸 US | Connector Shape: SquareWire Gauge (GA): 12, 14 | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P1184 | 🇺🇸 US | Wiring Harness Length: 7.0 In | View on Amazon |
This table covers the harness connectors at the Accessory Delay Relay. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
5 Accessory Delay Relay Connector parts are listed for the 2005 Buick Lacrosse, from STANDARD MOTOR PRODUCTS, UNITED MOTOR PRODUCTS, ACDELCO and 1 other brand. UNITED MOTOR PRODUCTS CON164 carries the "Popular" badge.
This group includes UNITED MOTOR PRODUCTS CON164, ACDELCO PT2371 and STANDARD MOTOR PRODUCTS HP4655 and the remaining parts above.
Accessory Power Outlet Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 | PT3865 | 🇺🇸 US 🇨🇦 CA | Gray4.0MM2 | View on Amazon |
| ROSTRA Fits: 3.8L V6 | 610518 | 🇺🇸 US | View on Amazon | |
| WELLS Fits: 3.8L V6 | 1P1919 | 🇺🇸 US | with 3 TerminalsGray | View on Amazon |
This table covers the harness connectors at the Accessory Power Outlet. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
3 Accessory Power Outlet Connector parts are listed for the 2005 Buick Lacrosse, from GM GENUINE, ROSTRA and WELLS.
Listed part numbers: GM GENUINE PT3865, ROSTRA 610518 and WELLS 1P1919.
AIR / Smog Pump Check Valve Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS Fits: 3.8L V6 | 1P4038 | 🇺🇸 US | with 6 Terminal(s)Shutoff Valve | View on Amazon |
This table covers the harness connectors at the AIR / Smog Pump Check Valve. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
This group shows a single part: WELLS 1P4038.
AIR / Smog Pump Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S1273 | 🇺🇸 US | View on Amazon |
This table covers the harness connectors at the AIR / Smog Pump. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
This group shows a single part: STANDARD MOTOR PRODUCTS S1273.
AIR / Smog Pump Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S947 | 🇺🇸 US | View on Amazon | |
| WELLS Fits: 3.8L V6 | 1P1609 | 🇺🇸 US | with 4 Terminals | View on Amazon |
This table covers the relays that control the AIR / Smog Pump circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.
2 AIR / Smog Pump Relay parts for the 2005 Buick Lacrosse come from 2 brands — STANDARD MOTOR PRODUCTS and WELLS.
Part numbers include STANDARD MOTOR PRODUCTS S947 and WELLS 1P1609.
Air Bag Clockspring Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S1295 | 🇺🇸 US | Gender: FemaleWiring Harness Length (In): 18 | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P1603 | 🇺🇸 US | with 4 Terminals | View on Amazon |
This table covers the harness connectors at the Air Bag Clockspring. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
2 Air Bag Clockspring Connector parts for the 2005 Buick Lacrosse come from 2 brands — STANDARD MOTOR PRODUCTS and WELLS.
This group includes STANDARD MOTOR PRODUCTS S1295 and WELLS 1P1603.
Air Bag Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Popular Fits: 3.8L V6 | PT1500 | 🇺🇸 US 🇨🇦 CA | Arming Sensor ConnectorYellow | View on Amazon |
| GM GENUINE Popular Fits: 3.8L V6 | PT2038 | 🇺🇸 US 🇨🇦 CA | Yellow4-Way Male | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | PT1745 | 🇺🇸 US 🇨🇦 CA | Yellow2-Way Male | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S1259 | 🇺🇸 US | Weather Resistant: YES | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S1261 | 🇺🇸 US | Yellow and Graywith Lock Tab At Top, Index Guides At Top Right and Bottom Left | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P2610 | 🇺🇸 US | Arming Sensor Connector2 Terminal, Yellow with Gray Tip, Female Connector | View on Amazon |
This table covers the harness connectors at the Air Bag. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
6 Air Bag Connector parts are listed for the 2005 Buick Lacrosse, from GM GENUINE, STANDARD MOTOR PRODUCTS and WELLS. GM GENUINE PT1500 carries the "Popular" badge.
Listed part numbers: GM GENUINE PT1500, GM GENUINE PT2038 and GM GENUINE PT1745, plus the other parts above.
Air Bag Module Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS Fits: 3.8L V6 | 1P2015 | 🇺🇸 US | Fits Reserve Power Module Connectoror with 8 Terminals | View on Amazon |
This table covers the harness connectors at the Air Bag Module. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
One part is listed for the 2005 Buick Lacrosse — WELLS 1P2015.
Air Injection Relay Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Popular Fits: 3.8L V6 | PT1384 | 🇺🇸 US 🇨🇦 CA | Gray4-Way Female | View on Amazon |
| ACDELCO Fits: 3.8L V6 | PT1642 | 🇺🇸 US | GM Original Equipment | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | PT3831 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| ROSTRA Fits: 3.8L V6 | 610655 | 🇺🇸 US | View on Amazon | |
| WELLS Fits: 3.8L V6 | 1P1609 | 🇺🇸 US | View on Amazon |
This table covers the harness connectors at the Air Injection Relay. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
5 Air Injection Relay Connector parts are listed for the 2005 Buick Lacrosse, from GM GENUINE, ACDELCO, ROSTRA and 1 other brand. GM GENUINE PT1384 carries the "Popular" badge.
Listed part numbers: GM GENUINE PT1384, ACDELCO PT1642 and GM GENUINE PT3831, plus the other parts above.
Air Injection Solenoid Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 | PT2265 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S1266 | 🇺🇸 US | View on Amazon |
This table covers the harness connectors at the Air Injection Solenoid. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
2 Air Injection Solenoid Connector parts are listed for the 2005 Buick Lacrosse, from GM GENUINE and STANDARD MOTOR PRODUCTS.
Part numbers include GM GENUINE PT2265 and STANDARD MOTOR PRODUCTS S1266.
Air Intake / Charge Temperature Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SKP Popular Fits: 3.8L V6 | SKS556 | 🇺🇸 US | Fits Grayor 2 Terminal Female | View on Amazon |
| WELLS Popular Fits: 3.8L V6 | 1P1016 | 🇺🇸 US | Connector Shape: Rectangular | View on Amazon |
| ACDELCO Fits: 3.8L V6 | PT2301 | 🇺🇸 US 🇨🇦 CA | Gold | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | PT307 | 🇺🇸 US 🇨🇦 CA | Gray2-Way Female | View on Amazon |
| HOLSTEIN Fits: 3.8L V6 | 2HAR0050 | 🇺🇸 US | Located On Intake Air | View on Amazon |
| ROSTRA Fits: 3.8L V6 | 610194 | 🇺🇸 US | View on Amazon | |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | HP4420 | 🇺🇸 US | Handypack | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S556 | 🇺🇸 US | Intake Air | View on Amazon |
| UNITED MOTOR PRODUCTS Fits: 3.8L V6 | CON81 | 🇺🇸 US | Connector Shape: SquareTerminal Quantity: 2 | View on Amazon |
This table covers the harness connectors at the Air Intake / Charge Temperature Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
9 Air Intake / Charge Temperature Sensor Connector parts for the 2005 Buick Lacrosse come from 8 brands — STANDARD MOTOR PRODUCTS, SKP, WELLS and 5 other brands. The "Popular" part is SKP SKS556.
Part numbers include SKP SKS556, WELLS 1P1016 and ACDELCO PT2301, among others listed above.
Alternator / Generator Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Popular Fits: 3.8L V6 | 645906 | 🇺🇸 US | Black | View on Amazon |
| UNITED MOTOR PRODUCTS Popular Fits: 3.8L V6 | CON22 | 🇺🇸 US | Connector Shape: Oval | View on Amazon |
| ACDELCO Fits: 3.8L V6 | 84941154 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | PT2971 | 🇺🇸 US 🇨🇦 CA | Gender: MaleTerminal Type: Blade | View on Amazon |
| ROSTRA Fits: 3.8L V6 | 610177 | 🇺🇸 US | View on Amazon | |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S1437 | 🇺🇸 US | Terminal Type: BladeWiring Harness Length (mm): 438.15 | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P2043 | 🇺🇸 US | View on Amazon |
This table covers the harness connectors at the Alternator / Generator. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
7 Alternator / Generator Connector parts are listed for the 2005 Buick Lacrosse, from DORMAN, UNITED MOTOR PRODUCTS, ACDELCO and 4 other brands. DORMAN 645906 carries the "Popular" badge.
Listed part numbers: DORMAN 645906, UNITED MOTOR PRODUCTS CON22 and ACDELCO 84941154, plus the other parts above.
Ambient Air Temperature Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Popular Fits: 3.8L V6 | PT2830 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| GM GENUINE Popular Fits: 3.8L V6 | PT248 | 🇺🇸 US 🇨🇦 CA | Green2-Way Female | View on Amazon |
| ACDELCO Fits: 3.8L V6 | PT2321 | 🇺🇸 US 🇨🇦 CA | Gold | View on Amazon |
| ROSTRA Fits: 3.8L V6 | 610285 | 🇺🇸 US | Interior Air Temperature | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S634 | 🇺🇸 US | Connector Shape: OvalTerminal Type: Blade | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P1364 | 🇺🇸 US | Internal Mounted | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P1018 | 🇺🇸 US | Externally Mounted | View on Amazon |
This table covers the harness connectors at the Ambient Air Temperature Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
7 Ambient Air Temperature Sensor Connector parts are listed for the 2005 Buick Lacrosse, from GM GENUINE, WELLS, ACDELCO and 2 other brands. GM GENUINE PT2830 carries the "Popular" badge.
This group includes GM GENUINE PT2830, GM GENUINE PT248 and ACDELCO PT2321 and the remaining parts above.
Antenna Module Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 | PT2645 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
This table covers the harness connectors at the Antenna Module. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
This group shows a single part: GM GENUINE PT2645.
Anti-Theft Control Module Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 | PT240 | 🇺🇸 US 🇨🇦 CA | Red2-Way Female | View on Amazon |
This table covers the harness connectors at the Anti-Theft Control Module. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
This group shows a single part: GM GENUINE PT240.
Anti-Theft Disable Switch Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 | PT2726 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
This table covers the harness connectors at the Anti-Theft Disable Switch. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
One part is listed for the 2005 Buick Lacrosse — GM GENUINE PT2726.
Automatic Headlamp Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 | PT146 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P1663 | 🇺🇸 US | Gender: Male | View on Amazon |
This table covers the harness connectors at the Automatic Headlamp Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
2 Automatic Headlamp Sensor Connector parts for the 2005 Buick Lacrosse come from 2 brands — GM GENUINE and WELLS.
Listed part numbers: GM GENUINE PT146 and WELLS 1P1663.
Back Up / Reverse Lamp Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S767 | 🇺🇸 US | View on Amazon | |
| UNITED MOTOR PRODUCTS Fits: 3.8L V6 | CON158 | 🇺🇸 US | View on Amazon | |
| WELLS Fits: 3.8L V6 | 1P1482 | 🇺🇸 US | View on Amazon |
This table covers the harness connectors at the Back Up / Reverse Lamp. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
3 Back Up / Reverse Lamp Connector parts for the 2005 Buick Lacrosse come from 3 brands — STANDARD MOTOR PRODUCTS, UNITED MOTOR PRODUCTS and WELLS.
Listed part numbers: STANDARD MOTOR PRODUCTS S767, UNITED MOTOR PRODUCTS CON158 and WELLS 1P1482.
Back Up / Reverse Lamp Relay Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| UNITED MOTOR PRODUCTS Popular Fits: 3.8L V6 | CON164 | 🇺🇸 US | Terminal Gender: FemaleTerminal Quantity: 5 | View on Amazon |
| ACDELCO Fits: 3.8L V6 | PT2371 | 🇺🇸 US 🇨🇦 CA | GoldShape: Square | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | HP4655 | 🇺🇸 US | HandypackConnector Shape: Square | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S803 | 🇺🇸 US | Connector Shape: SquareWire Gauge (GA): 12, 14 | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P1184 | 🇺🇸 US | Wiring Harness Length: 7.0 In | View on Amazon |
This table covers the harness connectors at the Back Up / Reverse Lamp Relay. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
5 Back Up / Reverse Lamp Relay Connector parts are listed for the 2005 Buick Lacrosse, from STANDARD MOTOR PRODUCTS, UNITED MOTOR PRODUCTS, ACDELCO and 1 other brand. UNITED MOTOR PRODUCTS CON164 carries the "Popular" badge.
Listed part numbers: UNITED MOTOR PRODUCTS CON164, ACDELCO PT2371 and STANDARD MOTOR PRODUCTS HP4655, plus the other parts above.
Back Up / Reverse Lamp Switch Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FAMOUS BRAND Fits: 3.8L V6 | PTA1173 | 🇺🇸 US 🇨🇦 CA | Backup Light Switch Connector | View on Amazon |
This table covers the harness connectors at the Back Up / Reverse Lamp Switch. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
This group shows a single part: FAMOUS BRAND PTA1173.
Barometric Pressure Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 | PT3043 | 🇺🇸 US 🇨🇦 CA | Black with Blue Lock3-Way Female | View on Amazon |
This table covers the harness connectors at the Barometric Pressure Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
This group shows a single part: GM GENUINE PT3043.
Battery Current Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 | PT3855 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| ROSTRA Fits: 3.8L V6 | 610106 | 🇺🇸 US | View on Amazon | |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S1025 | 🇺🇸 US | Connector Shape: Oval | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P2388 | 🇺🇸 US | Mounting Hardware Included: No | View on Amazon |
This table covers the harness connectors at the Battery Current Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
4 Battery Current Sensor Connector parts are listed for the 2005 Buick Lacrosse, from GM GENUINE, ROSTRA, STANDARD MOTOR PRODUCTS and 1 other brand.
Listed part numbers: GM GENUINE PT3855, ROSTRA 610106 and STANDARD MOTOR PRODUCTS S1025, plus the other parts above.
Blower Motor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FOUR SEASONS Popular Fits: 3.8L V6 | 70056 | 🇺🇸 US | 2 Terminal MaleRectangular Connector | View on Amazon |
| UNITED MOTOR PRODUCTS Popular Fits: 3.8L V6 | CON29 | 🇺🇸 US | View on Amazon | |
| GM GENUINE Fits: 3.8L V6 | PT1431 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | HP3865 | 🇺🇸 US | Handypack | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S1591 | 🇺🇸 US | Gender: MaleLength (In): 1.25 | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P2281 | 🇺🇸 US | with 2 TerminalsBlack | View on Amazon |
This table covers the harness connectors at the Blower Motor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
6 Blower Motor Connector parts are listed for the 2005 Buick Lacrosse, from STANDARD MOTOR PRODUCTS, FOUR SEASONS, UNITED MOTOR PRODUCTS and 2 other brands. FOUR SEASONS 70056 carries the "Popular" badge.
Listed part numbers: FOUR SEASONS 70056, UNITED MOTOR PRODUCTS CON29 and GM GENUINE PT1431, plus the other parts above.
Blower Motor Control Module / Resistor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FOUR SEASONS Popular Fits: 3.8L V6 | 70050 | 🇺🇸 US | 7 Terminal MaleHigh Temperature | View on Amazon |
| GM GENUINE Popular Fits: 3.8L V6 | PT1231 | 🇺🇸 US 🇨🇦 CA | MP 280Gray | View on Amazon |
| GM GENUINE Popular Fits: 3.8L V6 | PT2195 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| GPD Popular Fits: 3.8L V6 | 1712774 | 🇺🇸 US | Blower Motor Resistor Pigtail | View on Amazon |
| SKP Popular Fits: 3.8L V6 | SKS1352 | 🇺🇸 US | Fits Grayor 4 Terminal Female | View on Amazon |
| WELLS Popular Fits: 3.8L V6 | 1P1644 | 🇺🇸 US | with 5 Terminals | View on Amazon |
| ACDELCO Fits: 3.8L V6 | PT2485 | 🇺🇸 US 🇨🇦 CA | GoldShape: Rectangle | View on Amazon |
| DORMAN Fits: 3.8L V6 | 645512 | 🇺🇸 US | Black, 5 Way Female with Leads | View on Amazon |
| DORMAN Fits: 3.8L V6 | 645702 | 🇺🇸 US | Female | View on Amazon |
| DORMAN Fits: 3.8L V6 | 973300 | 🇺🇸 US | Harness | View on Amazon |
| FAMOUS BRAND Fits: 3.8L V6 | PTA1039 | 🇺🇸 US 🇨🇦 CA | Blower Resistor Connectorwith 5 Terminal(s) | View on Amazon |
| FOUR SEASONS Fits: 3.8L V6 | 37242 | 🇺🇸 US | 7 Terminal MaleStandard Temperature | View on Amazon |
| FOUR SEASONS Fits: 3.8L V6 | 37266 | 🇺🇸 US | 5 Terminal Male | View on Amazon |
| FOUR SEASONS Fits: 3.8L V6 | 70056 | 🇺🇸 US | 2 Terminal Male | View on Amazon |
| HOLSTEIN Fits: 3.8L V6 | 2HAR0047 | 🇺🇸 US | with Automatic Temperature ControlMultiple Connectors Required | View on Amazon |
| HOLSTEIN Fits: 3.8L V6 | 2HAR0044 | 🇺🇸 US | with Automatic Temperature ControlMultiple Connectors Required | View on Amazon |
| ROSTRA Fits: 3.8L V6 | 610026 | 🇺🇸 US | View on Amazon | |
| SKP Fits: 3.8L V6 | SKS1619 | 🇺🇸 US | with Automatic Temp Control | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | HP3865 | 🇺🇸 US | Handypack | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S916HT | 🇺🇸 US | Black | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | HP4652 | 🇺🇸 US | Handy PackBlack | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S1619 | 🇺🇸 US | Black | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S1591 | 🇺🇸 US | Gender: MaleLength (In): 1.25 | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S1619HT | 🇺🇸 US | Blue Streak | View on Amazon |
| UNITED MOTOR PRODUCTS Fits: 3.8L V6 | CON31 | 🇺🇸 US | with Multiple Connectors Requiredwith 5 Terminals | View on Amazon |
| UNITED MOTOR PRODUCTS Fits: 3.8L V6 | CON29 | 🇺🇸 US | with Multiple Connectors Requiredwith 2 Terminals | View on Amazon |
This table covers the connectors at the blower resistor or control module. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
26 Blower Motor Control Module / Resistor Connector parts for the 2005 Buick Lacrosse come from 12 brands — STANDARD MOTOR PRODUCTS, FOUR SEASONS, DORMAN and 9 other brands. The "Popular" part is FOUR SEASONS 70050. A list this long means Blower Motor Control Module / Resistor Connector applications vary by configuration — the notes carry the qualifiers.
Body Control Module (BCM) Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Popular Fits: 3.8L V6 | PT150 | 🇺🇸 US 🇨🇦 CA | Natural10-Way Female | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | PT224 | 🇺🇸 US 🇨🇦 CA | Blue10-Way Female | View on Amazon |
| ROSTRA Fits: 3.8L V6 | 610823 | 🇺🇸 US | with 16 Terminal(s)with 1 Female Connectors | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S1065 | 🇺🇸 US | Connector Shape: RectangleNumber of Splice Connectors Included: 10 | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S1651 | 🇺🇸 US | Wire Gauge (GA): 16, 18 | View on Amazon |
This table covers the harness connectors at the Body Control Module (BCM). Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
5 Body Control Module (BCM) Connector parts are listed for the 2005 Buick Lacrosse, from GM GENUINE, STANDARD MOTOR PRODUCTS and ROSTRA. GM GENUINE PT150 carries the "Popular" badge.
This group includes GM GENUINE PT150, GM GENUINE PT224 and ROSTRA 610823 and the remaining parts above.
Body Wiring Harness / Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Popular Fits: 3.8L V6 | PT2623 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| GM GENUINE Popular Fits: 3.8L V6 | PT1346 | 🇺🇸 US 🇨🇦 CA | BlackConnector | View on Amazon |
| GM GENUINE Popular Fits: 3.8L V6 | PT2869 | 🇺🇸 US 🇨🇦 CA | Length: 2.3 InBlack | View on Amazon |
| DORMAN Fits: 3.8L V6 | 645622 | 🇺🇸 US | Yellow | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | PT1344 | 🇺🇸 US 🇨🇦 CA | Yellow4-Way Female | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | PT1025 | 🇺🇸 US 🇨🇦 CA | Metri-Pack 150Gray | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | PT3907 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S1406 | 🇺🇸 US | with Offset Index SlotsYellow | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S1202 | 🇺🇸 US | Whitewith 4 Female Terminals | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S1200 | 🇺🇸 US | Attachment Method: Push OnGender: Female | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P1841 | 🇺🇸 US | with 2 TerminalsMale End | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P1898 | 🇺🇸 US | with 4 TerminalsGray | View on Amazon |
This table covers the body-harness connectors and pigtails. Typical signs include an intermittent fault that moves when you wiggle the harness, or a melted or corroded plug. Match terminal count and keyway. Repair with heat-shrink terminals, not twist-and-tape.
12 Body Wiring Harness / Connector parts for the 2005 Buick Lacrosse come from 4 brands — GM GENUINE, STANDARD MOTOR PRODUCTS, WELLS and 1 other brand. The "Popular" part is GM GENUINE PT2623.
Brake Fluid Level Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 | PT1798 | 🇺🇸 US 🇨🇦 CA | Gray2-Way Female | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P1006 | 🇺🇸 US | Connector Shape: OblongWiring Harness Length: 9.5 In | View on Amazon |
This table covers the harness connectors at the Brake Fluid Level Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
2 Brake Fluid Level Sensor Connector parts for the 2005 Buick Lacrosse come from 2 brands — GM GENUINE and WELLS.
Part numbers include GM GENUINE PT1798 and WELLS 1P1006.
Brake Light Switch Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Popular Fits: 3.8L V6 | PT1411 | 🇺🇸 US 🇨🇦 CA | Blue4-Way Female | View on Amazon |
| ROSTRA Fits: 3.8L V6 | 610391 | 🇺🇸 US | with 2 Terminal(s) | View on Amazon |
| ROSTRA Fits: 3.8L V6 | 610519 | 🇺🇸 US | with 4 Terminal(s)with 1 Male Connectors | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S1041 | 🇺🇸 US | Length (In): 0.875Wire Gauge (GA): 12, 16 | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P1678 | 🇺🇸 US | with 4 Terminals | View on Amazon |
This table covers the harness connectors at the Brake Light Switch. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
5 Brake Light Switch Connector parts for the 2005 Buick Lacrosse come from 4 brands — ROSTRA, GM GENUINE, STANDARD MOTOR PRODUCTS and 1 other brand. The "Popular" part is GM GENUINE PT1411.
Listed part numbers: GM GENUINE PT1411, ROSTRA 610391 and ROSTRA 610519, plus the other parts above.
Brake Pedal Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S2374 | 🇺🇸 US | with 3 Blade TerminalsPedal Position Sensor Connector | View on Amazon |
This table covers the harness connectors at the Brake Pedal. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
This group shows a single part: STANDARD MOTOR PRODUCTS S2374.
Brake Pedal Position Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 | PT3837 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
This table covers the harness connectors at the Brake Pedal Position Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
One part is listed for the 2005 Buick Lacrosse — GM GENUINE PT3837.
Brake Pressure Warning Switch Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 | PT2692 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P2032 | 🇺🇸 US | For Pressure Differential Switch | View on Amazon |
This table covers the harness connectors at the Brake Pressure Warning Switch. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
2 Brake Pressure Warning Switch Connector parts are listed for the 2005 Buick Lacrosse, from GM GENUINE and WELLS.
Listed part numbers: GM GENUINE PT2692 and WELLS 1P2032.
Brake Proportioning / Differential Valve Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S2309 | 🇺🇸 US | View on Amazon | |
| WELLS Fits: 3.8L V6 | 1P2032 | 🇺🇸 US | with 3 Terminals | View on Amazon |
This table covers the harness connectors at the Brake Proportioning / Differential Valve. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
2 Brake Proportioning / Differential Valve Connector parts for the 2005 Buick Lacrosse come from 2 brands — STANDARD MOTOR PRODUCTS and WELLS.
This group includes STANDARD MOTOR PRODUCTS S2309 and WELLS 1P2032.
Cabin Air Temperature Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 | PT146 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S717 | 🇺🇸 US | Attachment Method: Push OnIncludes Interior Lamp Switch | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S1667 | 🇺🇸 US | with 6 Pin Terminals | View on Amazon |
This table covers the harness connectors at the Cabin Air Temperature Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
3 Cabin Air Temperature Sensor Connector parts for the 2005 Buick Lacrosse come from 2 brands — STANDARD MOTOR PRODUCTS and GM GENUINE.
Part numbers include GM GENUINE PT146, STANDARD MOTOR PRODUCTS S717 and STANDARD MOTOR PRODUCTS S1667.
Camshaft Position Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Popular Fits: 3.8L V6 | 645785 | 🇺🇸 US | 3 Way Female Connector, Black | View on Amazon |
| GM GENUINE Popular Fits: 3.8L V6 | PT1369 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| SKP Popular Fits: 3.8L V6 | SKS577 | 🇺🇸 US | with 3 Female Terminals | View on Amazon |
| WELLS Popular Fits: 3.8L V6 | 1P1893 | 🇺🇸 US | with 2 TerminalsBlack | View on Amazon |
| ACDELCO Fits: 3.8L V6 | PT2308 | 🇺🇸 US 🇨🇦 CA | Gold | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | 84937218 | 🇺🇸 US 🇨🇦 CA | BlackLength: 7.5 In | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | PT2046 | 🇺🇸 US 🇨🇦 CA | Terminal Type: Blade PinBlack | View on Amazon |
| ROSTRA Fits: 3.8L V6 | 610135 | 🇺🇸 US | View on Amazon | |
| ROSTRA Fits: 3.8L V6 | 610158 | 🇺🇸 US | View on Amazon | |
| SKP Fits: 3.8L V6 | SKS1716 | 🇺🇸 US | Fits Black and Greenor 2 Terminal Female | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | HP4335 | 🇺🇸 US | Handypack | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S577 | 🇺🇸 US | Wire Gauge (GA): 16 | View on Amazon |
| ULTRA-POWER Fits: 3.8L V6 | 2701039 | 🇺🇸 US 🇨🇦 CA | Includes O-Ring | View on Amazon |
| UNITED MOTOR PRODUCTS Fits: 3.8L V6 | CON91 | 🇺🇸 US | with 3 Female Terminals | View on Amazon |
| WALKER PRODUCTS Fits: 3.8L V6 | 2701039 | 🇺🇸 US | Includes O-Ring | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P1020 | 🇺🇸 US | View on Amazon |
This table covers the harness connectors at the Camshaft Position Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
16 Camshaft Position Sensor Connector parts are listed for the 2005 Buick Lacrosse, from GM GENUINE, SKP, WELLS and 7 other brands. DORMAN 645785 carries the "Popular" badge.
Chassis Wiring Harness / Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS Fits: 3.8L V6 | 1P2561 | 🇺🇸 US | with 4 TerminalsBlack | View on Amazon |
This table covers the wiring-harness connectors at the Chassis. Typical signs include an intermittent fault that moves when you wiggle the harness, or a melted or corroded plug. Match terminal count and keyway. Repair with heat-shrink terminals, not twist-and-tape.
This group shows a single part: WELLS 1P2561.
Cigarette Lighter Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 | PT3865 | 🇺🇸 US 🇨🇦 CA | Gray4.0MM2 | View on Amazon |
| ROSTRA Fits: 3.8L V6 | 610518 | 🇺🇸 US | with 3 Terminal(s)with 1 Female Connectors | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S1167 | 🇺🇸 US | View on Amazon | |
| WELLS Fits: 3.8L V6 | 1P1919 | 🇺🇸 US | with 3 TerminalsGray | View on Amazon |
This table covers the harness connectors at the Cigarette Lighter. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
4 Cigarette Lighter Connector parts for the 2005 Buick Lacrosse come from 4 brands — GM GENUINE, ROSTRA, STANDARD MOTOR PRODUCTS and 1 other brand.
Listed part numbers: GM GENUINE PT3865, ROSTRA 610518 and STANDARD MOTOR PRODUCTS S1167, plus the other parts above.
Climate Control Sun Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS Fits: 3.8L V6 | 1P1663 | 🇺🇸 US | Gender: Male | View on Amazon |
This table covers the harness connectors at the Climate Control Sun Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
One part is listed for the 2005 Buick Lacrosse — WELLS 1P1663.
Communication Interface Module (VCIM) Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 | PT1502 | 🇺🇸 US 🇨🇦 CA | Natural12-Way Female | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | PT1404 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P2084 | 🇺🇸 US | with 12 TerminalsWhite | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P2613 | 🇺🇸 US | with 16 TerminalsNatural or White | View on Amazon |
This table covers the harness connectors at the Communication Interface Module (VCIM). Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
4 Communication Interface Module (VCIM) Connector parts for the 2005 Buick Lacrosse come from 2 brands — GM GENUINE and WELLS.
This group includes GM GENUINE PT1502, GM GENUINE PT1404 and WELLS 1P2084 and the remaining parts above.
Crankshaft Position Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Popular Fits: 3.8L V6 | PT420 | 🇺🇸 US 🇨🇦 CA | BlackLength: 11.4 In | View on Amazon |
| STANDARD MOTOR PRODUCTS Popular Fits: 3.8L V6 | HP4485 | 🇺🇸 US | HandypackWiring Harness Length (mm): 304.8 | View on Amazon |
| ACDELCO Fits: 3.8L V6 | PT2368 | 🇺🇸 US 🇨🇦 CA | GoldShape: Rectangle | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | PT1174 | 🇺🇸 US 🇨🇦 CA | Gray4-Way Female | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | PT2183 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| ROSTRA Fits: 3.8L V6 | 610125 | 🇺🇸 US | View on Amazon | |
| SKP Fits: 3.8L V6 | SKS1024 | 🇺🇸 US | Fits Black and Orang | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S761 | 🇺🇸 US | Wiring Harness Length (mm): 304.8 | View on Amazon |
| WALKER PRODUCTS Fits: 3.8L V6 | 2701040 | 🇺🇸 US | View on Amazon | |
| WELLS Fits: 3.8L V6 | 1P1264 | 🇺🇸 US | View on Amazon |
This table covers the harness connectors at the Crankshaft Position Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
10 Crankshaft Position Sensor Connector parts are listed for the 2005 Buick Lacrosse, from GM GENUINE, STANDARD MOTOR PRODUCTS, ACDELCO and 4 other brands. GM GENUINE PT420 carries the "Popular" badge.
Cruise Control Module Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S1147 | 🇺🇸 US | Connector Shape: RectangleWire Gauge (GA): 16, 20 | View on Amazon |
This table covers the harness connectors at the Cruise Control Module. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
One part is listed for the 2005 Buick Lacrosse — STANDARD MOTOR PRODUCTS S1147.
Deck Lid / Liftgate Ajar Switch Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S972 | 🇺🇸 US | Connector Shape: Rectangleblack | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P1594 | 🇺🇸 US | with 3 Terminals | View on Amazon |
This table covers the harness connectors at the Deck Lid / Liftgate Ajar Switch. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
2 Deck Lid / Liftgate Ajar Switch Connector parts for the 2005 Buick Lacrosse come from 2 brands — STANDARD MOTOR PRODUCTS and WELLS.
Part numbers include STANDARD MOTOR PRODUCTS S972 and WELLS 1P1594.
Defroster Relay Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Fits: 3.8L V6 | PT2371 | 🇺🇸 US 🇨🇦 CA | GoldShape: Square | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | HP4655 | 🇺🇸 US | HandypackConnector Shape: Square | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S803 | 🇺🇸 US | Connector Shape: SquareWire Gauge (GA): 12, 14 | View on Amazon |
| UNITED MOTOR PRODUCTS Fits: 3.8L V6 | CON164 | 🇺🇸 US | Terminal Gender: FemaleTerminal Quantity: 5 | View on Amazon |
This table covers the harness connectors at the Defroster Relay. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
4 Defroster Relay Connector parts for the 2005 Buick Lacrosse come from 3 brands — STANDARD MOTOR PRODUCTS, ACDELCO and UNITED MOTOR PRODUCTS.
This group includes ACDELCO PT2371, STANDARD MOTOR PRODUCTS HP4655 and STANDARD MOTOR PRODUCTS S803 and the remaining parts above.
Door Jamb Switch Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 | PT2902 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
This table covers the harness connectors at the Door Jamb Switch. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
One part is listed for the 2005 Buick Lacrosse — GM GENUINE PT2902.
Door Lock Actuator Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Popular Fits: 3.8L V6 | 88952463 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| ROSTRA Popular Fits: 3.8L V6 | 610065 | 🇺🇸 US | with 4 Terminal(s) | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | PT1571 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| ROSTRA Fits: 3.8L V6 | 610658 | 🇺🇸 US | with 2 Terminal(s) | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P3911 | 🇺🇸 US | with 10 Terminals | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P1026 | 🇺🇸 US | Terminal Type: BladeWiring Harness Length: 9.25 In | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P1146 | 🇺🇸 US | with 2 Terminals | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P3394 | 🇺🇸 US | Terminal Quantity: 6 | View on Amazon |
This table covers the harness connectors at the Door Lock Actuator. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
8 Door Lock Actuator Connector parts are listed for the 2005 Buick Lacrosse, from WELLS, GM GENUINE and ROSTRA. GM GENUINE 88952463 carries the "Popular" badge.
Listed part numbers: GM GENUINE 88952463, ROSTRA 610065 and GM GENUINE PT1571, plus the other parts above.
Door Lock Switch Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 | PT796 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S1618 | 🇺🇸 US | Connector Shape: RectangleWire Gauge (GA): 20 | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P2190 | 🇺🇸 US | Fits Leftwith 5 Terminals | View on Amazon |
This table covers the harness connectors at the Door Lock Switch. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
3 Door Lock Switch Connector parts for the 2005 Buick Lacrosse come from 3 brands — GM GENUINE, STANDARD MOTOR PRODUCTS and WELLS.
Listed part numbers: GM GENUINE PT796, STANDARD MOTOR PRODUCTS S1618 and WELLS 1P2190.
EGR Valve Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| UNITED MOTOR PRODUCTS Popular Fits: 3.8L V6 | CON9 | 🇺🇸 US | Color: BlackTerminal Quantity: 5 | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | PT1154 | 🇺🇸 US 🇨🇦 CA | LT Gray5-Way Female | View on Amazon |
| ROSTRA Fits: 3.8L V6 | 610284 | 🇺🇸 US | View on Amazon | |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S1054 | 🇺🇸 US | Terminal Type: Blade | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P1590 | 🇺🇸 US | View on Amazon |
This table covers the harness connectors at the EGR Valve. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
5 EGR Valve Connector parts are listed for the 2005 Buick Lacrosse, from UNITED MOTOR PRODUCTS, GM GENUINE, ROSTRA and 2 other brands. UNITED MOTOR PRODUCTS CON9 carries the "Popular" badge.
Listed part numbers: UNITED MOTOR PRODUCTS CON9, GM GENUINE PT1154 and ROSTRA 610284, plus the other parts above.
Engine Wiring Harness / Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Popular Fits: 3.8L V6 | PT3910 | 🇺🇸 US 🇨🇦 CA | Gray2-Way Female | View on Amazon |
| WELLS Popular Fits: 3.8L V6 | 1P1044 | 🇺🇸 US | Connector Shape: OblongTerminal Quantity: 2 | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | 19181245 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | PT1320 | 🇺🇸 US 🇨🇦 CA | Gray4-Way Male | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | PT996 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | PT1116 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S1340 | 🇺🇸 US | Gauge: 10 GAWiring Harness Length (mm): 457.2 | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S1337 | 🇺🇸 US | Connector Shape: Oval | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P2060 | 🇺🇸 US | with 16 TerminalsBlack | View on Amazon |
This table covers the wiring-harness connectors at the Engine. Typical signs include an intermittent fault that moves when you wiggle the harness, or a melted or corroded plug. Match terminal count and keyway. Repair with heat-shrink terminals, not twist-and-tape.
9 Engine Wiring Harness / Connector parts for the 2005 Buick Lacrosse come from 3 brands — GM GENUINE, WELLS and STANDARD MOTOR PRODUCTS. The "Popular" part is GM GENUINE PT3910.
Part numbers include GM GENUINE PT3910, WELLS 1P1044 and GM GENUINE 19181245, among others listed above.
Fog / Driving Lamp Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SKP Popular Fits: 3.8L V6 | SKS553 | 🇺🇸 US | Fits Black and Blu | View on Amazon |
| STANDARD MOTOR PRODUCTS Popular Fits: 3.8L V6 | HP3835 | 🇺🇸 US | HandypackConnector Shape: Oval | View on Amazon |
| STANDARD MOTOR PRODUCTS Popular Fits: 3.8L V6 | S553 | 🇺🇸 US | Connector Shape: OvalContact Terminal Material: Metal | View on Amazon |
| ACDELCO Fits: 3.8L V6 | PT2298 | 🇺🇸 US 🇨🇦 CA | GoldHeight (In): 1.5 in | View on Amazon |
| DORMAN Fits: 3.8L V6 | 85855 | 🇺🇸 US | 2-WireFog Lamp Socket Bulbs 881 & 889 | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | PT189 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | PT3800 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| ROSTRA Fits: 3.8L V6 | 610003 | 🇺🇸 US | with Side Mount Bulb | View on Amazon |
| ROSTRA Fits: 3.8L V6 | 610001 | 🇺🇸 US | with Top Mount Bulb | View on Amazon |
| UNITED MOTOR PRODUCTS Fits: 3.8L V6 | CON78 | 🇺🇸 US | View on Amazon | |
| WELLS Fits: 3.8L V6 | 1P2076 | 🇺🇸 US | with Top Mount Bulb | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P1032 | 🇺🇸 US | with Side Mount Bulb | View on Amazon |
This table covers the harness connectors at the Fog / Driving Lamp. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
12 Fog / Driving Lamp Connector parts are listed for the 2005 Buick Lacrosse, from STANDARD MOTOR PRODUCTS, GM GENUINE, ROSTRA and 5 other brands. SKP SKS553 carries the "Popular" badge.
Fuel Injector Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GB REMANUFACTURING Popular Fits: 3.8L V6 | 5191 | 🇺🇸 US | View on Amazon | |
| STANDARD MOTOR PRODUCTS Popular Fits: 3.8L V6 | HP3945 | 🇺🇸 US | HandypackConnector Shape: Square | View on Amazon |
| STANDARD MOTOR PRODUCTS Popular Fits: 3.8L V6 | S824 | 🇺🇸 US | Connector Shape: SquareHarness Length | View on Amazon |
| ACDELCO Fits: 3.8L V6 | PT2160 | 🇺🇸 US 🇨🇦 CA | GoldShape: Square | View on Amazon |
| ACDELCO Fits: 3.8L V6 | PT1846 | 🇺🇸 US 🇨🇦 CA | 2-WAY FEMALE GRAY | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | PT2135 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | PT382 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | PT3765 | 🇺🇸 US 🇨🇦 CA | Gray2-Way Female | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | PT1401 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| HOLSTEIN Fits: 3.8L V6 | 2HAR0035 | 🇺🇸 US | Includes ABS Wheel Speed Sensor Wire Harness | View on Amazon |
| ROSTRA Fits: 3.8L V6 | 610309 | 🇺🇸 US | View on Amazon | |
| SKP Fits: 3.8L V6 | SKS824 | 🇺🇸 US | Includes ABS Wheel Speed Sensor Wire Harness | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S1243 | 🇺🇸 US | Connector Shape: RectangleGauge: 18-12 Gauge | View on Amazon |
| UNITED MOTOR PRODUCTS Fits: 3.8L V6 | CON176 | 🇺🇸 US | View on Amazon | |
| WELLS Fits: 3.8L V6 | 1P1592 | 🇺🇸 US | View on Amazon |
This table covers the harness connectors at the Fuel Injector. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
15 Fuel Injector Connector parts are listed for the 2005 Buick Lacrosse, from GM GENUINE, STANDARD MOTOR PRODUCTS, ACDELCO and 6 other brands. GB REMANUFACTURING 5191 carries the "Popular" badge.
Fuel Pump / Circuit Opening Relay Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CARTER Fits: 3.8L V6 | 888700 | 🇺🇸 US | Fuel Pump Wiring Harness | View on Amazon |
| GMB Fits: 3.8L V6 | 5001023 | 🇺🇸 US | Fuel Pump Wiring Harness | View on Amazon |
This table covers the harness connectors at the Fuel Pump / Circuit Opening Relay. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
2 Fuel Pump / Circuit Opening Relay Connector parts for the 2005 Buick Lacrosse come from 2 brands — CARTER and GMB.
Part numbers include CARTER 888700 and GMB 5001023.
Fuel Sending Unit Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S1265 | 🇺🇸 US | Black | View on Amazon |
This table covers the harness connectors at the Fuel Sending Unit. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
One part is listed for the 2005 Buick Lacrosse — STANDARD MOTOR PRODUCTS S1265.
Fuel Tank Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S1377 | 🇺🇸 US | Gray | View on Amazon |
This table covers the harness connectors at the Fuel Tank. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
One part is listed for the 2005 Buick Lacrosse — STANDARD MOTOR PRODUCTS S1377.
Fuel Tank Pressure Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SKP Popular Fits: 3.8L V6 | SKS656 | 🇺🇸 US | Fits Black and Purpl | View on Amazon |
| STANDARD MOTOR PRODUCTS Popular Fits: 3.8L V6 | HP4240 | 🇺🇸 US | HandypackConnector Shape: Oval | View on Amazon |
| ACDELCO Fits: 3.8L V6 | PT1910 | 🇺🇸 US 🇨🇦 CA | GoldTerminal Type: Pin | View on Amazon |
| ROSTRA Fits: 3.8L V6 | 610018 | 🇺🇸 US | View on Amazon | |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S656 | 🇺🇸 US | Connector Shape: OvalGauge: 18 | View on Amazon |
| UNITED MOTOR PRODUCTS Fits: 3.8L V6 | CON124 | 🇺🇸 US | Terminal Quantity: 3 | View on Amazon |
| WALKER PRODUCTS Fits: 3.8L V6 | 2701038 | 🇺🇸 US | Includes O-Ring, Seal | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P1209 | 🇺🇸 US | Gender: MaleWiring Harness Length: 9.5 In | View on Amazon |
This table covers the harness connectors at the Fuel Tank Pressure Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
8 Fuel Tank Pressure Sensor Connector parts for the 2005 Buick Lacrosse come from 7 brands — STANDARD MOTOR PRODUCTS, SKP, ACDELCO and 4 other brands. The "Popular" part is SKP SKS656.
Listed part numbers: SKP SKS656, STANDARD MOTOR PRODUCTS HP4240 and ACDELCO PT1910, plus the other parts above.
Fuse Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ROSTRA Fits: 3.8L V6 | 610863 | 🇺🇸 US | View on Amazon | |
| WELLS Fits: 3.8L V6 | 1P1899 | 🇺🇸 US | with 2 TerminalsGray | View on Amazon |
This table covers the harness connectors at the Fuse. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
2 Fuse Connector parts for the 2005 Buick Lacrosse come from 2 brands — ROSTRA and WELLS.
Part numbers include ROSTRA 610863 and WELLS 1P1899.
Glove Box Lamp Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 | PT146 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
This table covers the harness connectors at the Glove Box Lamp. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
One part is listed for the 2005 Buick Lacrosse — GM GENUINE PT146.
Headlamp Dimmer Switch Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S1399 | 🇺🇸 US | Black | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S1598 | 🇺🇸 US | Connector Shape: Rectangleblack | View on Amazon |
This table covers the harness connectors at the Headlamp Dimmer Switch. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
STANDARD MOTOR PRODUCTS supplies both parts for the 2005 Buick Lacrosse.
Part numbers include STANDARD MOTOR PRODUCTS S1399 and STANDARD MOTOR PRODUCTS S1598.
Headlamp Relay Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| UNITED MOTOR PRODUCTS Popular Fits: 3.8L V6 | CON164 | 🇺🇸 US | Terminal Gender: FemaleTerminal Quantity: 5 | View on Amazon |
| ACDELCO Fits: 3.8L V6 | PT2371 | 🇺🇸 US 🇨🇦 CA | GoldShape: Square | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | HP4655 | 🇺🇸 US | HandypackConnector Shape: Square | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S803 | 🇺🇸 US | Connector Shape: SquareWire Gauge (GA): 12, 14 | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P1184 | 🇺🇸 US | Wiring Harness Length: 7.0 In | View on Amazon |
This table covers the harness connectors at the Headlamp Relay. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
5 Headlamp Relay Connector parts for the 2005 Buick Lacrosse come from 4 brands — STANDARD MOTOR PRODUCTS, UNITED MOTOR PRODUCTS, ACDELCO and 1 other brand. The "Popular" part is UNITED MOTOR PRODUCTS CON164.
Part numbers include UNITED MOTOR PRODUCTS CON164, ACDELCO PT2371 and STANDARD MOTOR PRODUCTS HP4655, among others listed above.
Headlamp Switch Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S1158 | 🇺🇸 US | Connector Shape: RectangleWire Gauge (GA): 12 | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P1950 | 🇺🇸 US | with 2 TerminalsBlack | View on Amazon |
This table covers the harness connectors at the Headlamp Switch. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
2 Headlamp Switch Connector parts are listed for the 2005 Buick Lacrosse, from STANDARD MOTOR PRODUCTS and WELLS.
Part numbers include STANDARD MOTOR PRODUCTS S1158 and WELLS 1P1950.
Headlamp Wiring Harness / Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 | PT3910 | 🇺🇸 US 🇨🇦 CA | Gray2-Way Female | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | 84779454 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
This table covers the wiring-harness connectors at the Headlamp. Typical signs include an intermittent fault that moves when you wiggle the harness, or a melted or corroded plug. Match terminal count and keyway. Repair with heat-shrink terminals, not twist-and-tape.
2 Headlamp Wiring Harness / Connector parts for the 2005 Buick Lacrosse come from GM GENUINE.
This group includes GM GENUINE PT3910 and GM GENUINE 84779454.
Headliner Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS Fits: 3.8L V6 | 1P2004 | 🇺🇸 US | View on Amazon |
This table covers the harness connectors at the Headliner. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
One part is listed for the 2005 Buick Lacrosse — WELLS 1P2004.
Heater Air Door Actuator Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FOUR SEASONS Fits: 3.8L V6 | 37283 | 🇺🇸 US | Fits 2 Terminal MaleBlendor 2 Terminal Male | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S722 | 🇺🇸 US | Wiring Harness Length (mm): 209.55 | View on Amazon |
This table covers the harness connectors at the Heater Air Door Actuator. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
2 Heater Air Door Actuator Connector parts are listed for the 2005 Buick Lacrosse, from FOUR SEASONS and STANDARD MOTOR PRODUCTS.
Part numbers include FOUR SEASONS 37283 and STANDARD MOTOR PRODUCTS S722.
High Mount Brake Light Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 | PT456 | 🇺🇸 US 🇨🇦 CA | Blue2-Way Female | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S1624 | 🇺🇸 US | Wiring Harness Length (mm): 425.45 | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P1886 | 🇺🇸 US | Wiring Harness Length: 16.0 In | View on Amazon |
This table covers the harness connectors at the High Mount Brake Light. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
3 High Mount Brake Light Connector parts are listed for the 2005 Buick Lacrosse, from GM GENUINE, STANDARD MOTOR PRODUCTS and WELLS.
Listed part numbers: GM GENUINE PT456, STANDARD MOTOR PRODUCTS S1624 and WELLS 1P1886.
Hood Ajar Indicator Switch Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 | PT2629 | 🇺🇸 US 🇨🇦 CA | OVAL2-WAY FEMALE BLACK | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | 87815146 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
This table covers the harness connectors at the Hood Ajar Indicator Switch. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
2 Hood Ajar Indicator Switch Connector parts for the 2005 Buick Lacrosse come from GM GENUINE.
Listed part numbers: GM GENUINE PT2629 and GM GENUINE 87815146.
Horn Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Popular Fits: 3.8L V6 | PT1846 | 🇺🇸 US 🇨🇦 CA | 2-WAY FEMALE GRAY | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | PT1718 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | PT3765 | 🇺🇸 US 🇨🇦 CA | SquareGray | View on Amazon |
| ROSTRA Fits: 3.8L V6 | 610309 | 🇺🇸 US | View on Amazon | |
| WELLS Fits: 3.8L V6 | 1P1592 | 🇺🇸 US | View on Amazon |
This table covers the harness connectors at the Horn. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
5 Horn Connector parts for the 2005 Buick Lacrosse come from 4 brands — GM GENUINE, ACDELCO, ROSTRA and 1 other brand. The "Popular" part is ACDELCO PT1846.
Part numbers include ACDELCO PT1846, GM GENUINE PT1718 and GM GENUINE PT3765, among others listed above.
HVAC Control Switch / Panel Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 | PT590 | 🇺🇸 US 🇨🇦 CA | Gray6-Way Female | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | PT1346 | 🇺🇸 US 🇨🇦 CA | BlackConnector | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S1148 | 🇺🇸 US | Connector Shape: Rectangle | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S1059 | 🇺🇸 US | Wire Gauge (GA): 16, 20 | View on Amazon |
This table covers the harness connectors at the HVAC Control Switch / Panel. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
4 HVAC Control Switch / Panel Connector parts are listed for the 2005 Buick Lacrosse, from GM GENUINE and STANDARD MOTOR PRODUCTS.
Listed part numbers: GM GENUINE PT590, GM GENUINE PT1346 and STANDARD MOTOR PRODUCTS S1148, plus the other parts above.
Hybrid Battery Voltage Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S1025 | 🇺🇸 US | Connector Shape: Oval | View on Amazon |
| UNITED MOTOR PRODUCTS Fits: 3.8L V6 | CON6 | 🇺🇸 US | View on Amazon |
This table covers the harness connectors at the Hybrid Battery Voltage Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
2 Hybrid Battery Voltage Sensor Connector parts for the 2005 Buick Lacrosse come from 2 brands — STANDARD MOTOR PRODUCTS and UNITED MOTOR PRODUCTS.
Part numbers include STANDARD MOTOR PRODUCTS S1025 and UNITED MOTOR PRODUCTS CON6.
Idle Air Control (IAC) Valve Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Popular Fits: 3.8L V6 | PT2296 | 🇺🇸 US 🇨🇦 CA | GoldTerminal Quantity: 4 | View on Amazon |
| STANDARD MOTOR PRODUCTS Popular Fits: 3.8L V6 | HP3895 | 🇺🇸 US | HandypackLength (In): 1.125 | View on Amazon |
| DORMAN Fits: 3.8L V6 | 645405 | 🇺🇸 US | 4 Way Female with Leads | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | PT2902 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S551 | 🇺🇸 US | Connector Shape: OvalLength (In): 1.125 | View on Amazon |
| UNITED MOTOR PRODUCTS Fits: 3.8L V6 | CON76 | 🇺🇸 US | Terminal Quantity: 4 | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P1026 | 🇺🇸 US | Terminal Type: BladeWiring Harness Length: 9.25 In | View on Amazon |
This table covers the harness connectors at the Idle Air Control (IAC) Valve. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
7 Idle Air Control (IAC) Valve Connector parts for the 2005 Buick Lacrosse come from 6 brands — STANDARD MOTOR PRODUCTS, ACDELCO, DORMAN and 3 other brands. The "Popular" part is ACDELCO PT2296.
This group includes ACDELCO PT2296, STANDARD MOTOR PRODUCTS HP3895 and DORMAN 645405 and the remaining parts above.
Ignition Coil Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 | PT2040 | 🇺🇸 US 🇨🇦 CA | 4-WAY FEMALE BLACK | View on Amazon |
This table covers the harness connectors at the Ignition Coil. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
One part is listed for the 2005 Buick Lacrosse — GM GENUINE PT2040.
Ignition Control Module (ICM) Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SKP Popular Fits: 3.8L V6 | SKTX3A | 🇺🇸 US | Fits Blackor 2 Terminal Female | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | PT787 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | PT789 | 🇺🇸 US 🇨🇦 CA | Gray14-Way Female | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S1026 | 🇺🇸 US | Gray | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P1598 | 🇺🇸 US | with 14 Terminals | View on Amazon |
This table covers the harness connectors at the Ignition Control Module (ICM). Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
5 Ignition Control Module (ICM) Connector parts are listed for the 2005 Buick Lacrosse, from GM GENUINE, SKP, STANDARD MOTOR PRODUCTS and 1 other brand. SKP SKTX3A carries the "Popular" badge.
This group includes SKP SKTX3A, GM GENUINE PT787 and GM GENUINE PT789 and the remaining parts above.
Inline Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS Popular Fits: 3.8L V6 | 1P1886 | 🇺🇸 US | Wiring Harness Length: 16.0 In | View on Amazon |
| WELLS Popular Fits: 3.8L V6 | 1P2070 | 🇺🇸 US | To Rear Object Sensor Harnesswith 8 Terminals | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P1932 | 🇺🇸 US | To Power Steeringwith 2 Terminals | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P1992 | 🇺🇸 US | To Instrument Panel Harnesswith 2 Terminals | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P2017 | 🇺🇸 US | To Body Harnesswith 4 Terminals | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P2007 | 🇺🇸 US | To Engine Harnesswith 4 Terminals | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P2613 | 🇺🇸 US | To Interi | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P2060 | 🇺🇸 US | To Fuel Injector Harnesswith 16 Terminals | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P2092 | 🇺🇸 US | To Headliner Harnesswith 16 Terminals | View on Amazon |
This table covers the harness connectors at the Inline. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
9 Inline Connector parts for the 2005 Buick Lacrosse come from WELLS. The "Popular" part is WELLS 1P1886.
This group includes WELLS 1P1886, WELLS 1P2070 and WELLS 1P1932 and the remaining parts above.
Inside Rear View Mirror Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 | PT1404 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S1244 | 🇺🇸 US | View on Amazon |
This table covers the harness connectors at the Inside Rear View Mirror. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
2 Inside Rear View Mirror Connector parts are listed for the 2005 Buick Lacrosse, from GM GENUINE and STANDARD MOTOR PRODUCTS.
This group includes GM GENUINE PT1404 and STANDARD MOTOR PRODUCTS S1244.
Instrument Panel Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Popular Fits: 3.8L V6 | PT2834 | 🇺🇸 US 🇨🇦 CA | GM Original Equipment | View on Amazon |
| GM GENUINE Popular Fits: 3.8L V6 | PT1008 | 🇺🇸 US 🇨🇦 CA | Gray14-Way Female | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | PT3833 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S1199 | 🇺🇸 US | Gray | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P1864 | 🇺🇸 US | Theft Deterrent IndicatorInstrument Lamp Connector | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P1950 | 🇺🇸 US | with 2 Terminal(s)Black | View on Amazon |
This table covers the harness connectors at the Instrument Panel. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
6 Instrument Panel Connector parts for the 2005 Buick Lacrosse come from 4 brands — GM GENUINE, WELLS, ACDELCO and 1 other brand. The "Popular" part is ACDELCO PT2834.
Listed part numbers: ACDELCO PT2834, GM GENUINE PT1008 and GM GENUINE PT3833, plus the other parts above.
Knock / Detonation Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Popular Fits: 3.8L V6 | S1214 | 🇺🇸 US | Contact Terminal Material: Metal | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | PT1233 | 🇺🇸 US 🇨🇦 CA | GrayBlue Seal | View on Amazon |
| ROSTRA Fits: 3.8L V6 | 610157 | 🇺🇸 US | View on Amazon | |
| UNITED MOTOR PRODUCTS Fits: 3.8L V6 | CON15 | 🇺🇸 US | View on Amazon | |
| WELLS Fits: 3.8L V6 | 1P1432 | 🇺🇸 US | View on Amazon |
This table covers the harness connectors at the Knock / Detonation Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
5 Knock / Detonation Sensor Connector parts are listed for the 2005 Buick Lacrosse, from STANDARD MOTOR PRODUCTS, GM GENUINE, ROSTRA and 2 other brands. STANDARD MOTOR PRODUCTS S1214 carries the "Popular" badge.
This group includes STANDARD MOTOR PRODUCTS S1214, GM GENUINE PT1233 and ROSTRA 610157 and the remaining parts above.
License Plate Lamp Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: 3.8L V6 | 645534 | 🇺🇸 US | 2 Way Female with Leads | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | PT2629 | 🇺🇸 US 🇨🇦 CA | OVAL2-WAY FEMALE BLACK | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | 87815146 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
This table covers the harness connectors at the License Plate Lamp. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
3 License Plate Lamp Connector parts for the 2005 Buick Lacrosse come from 2 brands — GM GENUINE and DORMAN.
This group includes DORMAN 645534, GM GENUINE PT2629 and GM GENUINE 87815146.
Liftgate Harness Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 | PT2719 | 🇺🇸 US 🇨🇦 CA | BlackLength: 8.5 In | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S1097 | 🇺🇸 US | Connector Shape: RectangleGender: Male | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S1105 | 🇺🇸 US | BlackConnector Shape: Rectangle | View on Amazon |
This table covers the harness connectors at the Liftgate Harness. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
3 Liftgate Harness Connector parts are listed for the 2005 Buick Lacrosse, from STANDARD MOTOR PRODUCTS and GM GENUINE.
This group includes GM GENUINE PT2719, STANDARD MOTOR PRODUCTS S1097 and STANDARD MOTOR PRODUCTS S1105.
Liftgate Object Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 | PT3707 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
This table covers the harness connectors at the Liftgate Object Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
This group shows a single part: GM GENUINE PT3707.
Manifold Pressure (MAP) Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Popular Fits: 3.8L V6 | PT1799 | 🇺🇸 US 🇨🇦 CA | GRAY3-WAY FEMALE | View on Amazon |
| UNITED MOTOR PRODUCTS Popular Fits: 3.8L V6 | CON199 | 🇺🇸 US | with 3 Female Terminalswith Gray Connector | View on Amazon |
| SKP Fits: 3.8L V6 | SKS595 | 🇺🇸 US | View on Amazon | |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | HP4155 | 🇺🇸 US | Handypack | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S952 | 🇺🇸 US | Graywith 3 Female Terminals | View on Amazon |
| WALKER PRODUCTS Fits: 3.8L V6 | 2701044 | 🇺🇸 US | Includes O-Ring, Seal | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P1544 | 🇺🇸 US | View on Amazon |
This table covers the harness connectors at the Manifold Pressure (MAP) Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
7 Manifold Pressure (MAP) Sensor Connector parts are listed for the 2005 Buick Lacrosse, from STANDARD MOTOR PRODUCTS, GM GENUINE, UNITED MOTOR PRODUCTS and 3 other brands. GM GENUINE PT1799 carries the "Popular" badge.
This group includes GM GENUINE PT1799, UNITED MOTOR PRODUCTS CON199 and SKP SKS595 and the remaining parts above.
Mass Air Flow (MAF) Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Popular Fits: 3.8L V6 | PT2785 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| GM GENUINE Popular Fits: 3.8L V6 | PT2782 | 🇺🇸 US 🇨🇦 CA | Terminal Type: Blade PinWidth: 3 In | View on Amazon |
| DORMAN Fits: 3.8L V6 | 645500 | 🇺🇸 US | Wiring Harness Length: 17.25 InBlack | View on Amazon |
| ROSTRA Fits: 3.8L V6 | 610122 | 🇺🇸 US | View on Amazon | |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | HP4796 | 🇺🇸 US | Handypack | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S1262 | 🇺🇸 US | Terminal Quantity: 5 | View on Amazon |
| UNITED MOTOR PRODUCTS Fits: 3.8L V6 | CON17 | 🇺🇸 US | with 5 Female Terminalswith Black and Purple Connector | View on Amazon |
| WALKER PRODUCTS Fits: 3.8L V6 | 2701134 | 🇺🇸 US | Black and Purple5 Terminal Female | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P2072 | 🇺🇸 US | with 5 TerminalsBlack | View on Amazon |
This table covers the harness connectors at the Mass Air Flow (MAF) Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
9 Mass Air Flow (MAF) Sensor Connector parts for the 2005 Buick Lacrosse come from 7 brands — GM GENUINE, STANDARD MOTOR PRODUCTS, DORMAN and 4 other brands. The "Popular" part is GM GENUINE PT2785.
This group includes GM GENUINE PT2785, GM GENUINE PT2782 and DORMAN 645500 and the remaining parts above.
Multi-Function Relay Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS Fits: 3.8L V6 | 1P1184 | 🇺🇸 US | Wiring Harness Length: 7.0 In | View on Amazon |
This table covers the harness connectors at the Multi-Function Relay. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
This group shows a single part: WELLS 1P1184.
Multi-Function Switch Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS Fits: 3.8L V6 | 1P1651 | 🇺🇸 US | with 8 Terminals | View on Amazon |
This table covers the harness connectors at the Multi-Function Switch. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
One part is listed for the 2005 Buick Lacrosse — WELLS 1P1651.
Neutral Safety Switch / Range Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S2028 | 🇺🇸 US | Color Code Black and Redwith 10 Female Terminals | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S1076 | 🇺🇸 US | Greenwith 6 Female Terminals | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P3374 | 🇺🇸 US | View on Amazon |
This table covers the harness connectors at the Neutral Safety Switch / Range Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
3 Neutral Safety Switch / Range Sensor Connector parts for the 2005 Buick Lacrosse come from 2 brands — STANDARD MOTOR PRODUCTS and WELLS.
Listed part numbers: STANDARD MOTOR PRODUCTS S2028, STANDARD MOTOR PRODUCTS S1076 and WELLS 1P3374.
Oil Level Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Popular Fits: 3.8L V6 | PT2830 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| ROSTRA Popular Fits: 3.8L V6 | 610108 | 🇺🇸 US | with 2 Terminal(s)with 1 Female Connectors | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | PT3855 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| ROSTRA Fits: 3.8L V6 | 610106 | 🇺🇸 US | with 3 Terminal(s)with 1 Female Connectors | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P1362 | 🇺🇸 US | Connector Shape: OblongTerminal Quantity: 2 | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P2388 | 🇺🇸 US | Mounting Hardware Included: No | View on Amazon |
This table covers the harness connectors at the Oil Level Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
6 Oil Level Sensor Connector parts are listed for the 2005 Buick Lacrosse, from GM GENUINE, ROSTRA and WELLS. GM GENUINE PT2830 carries the "Popular" badge.
Part numbers include GM GENUINE PT2830, ROSTRA 610108 and GM GENUINE PT3855, among others listed above.
Oil Pressure Gauge Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 | PT3829 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
This table covers the harness connectors at the Oil Pressure Gauge. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
One part is listed for the 2005 Buick Lacrosse — GM GENUINE PT3829.
Oil Pressure Sender / Switch Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Popular Fits: 3.8L V6 | PT2319 | 🇺🇸 US 🇨🇦 CA | GoldTerminal Gender: Female | View on Amazon |
| STANDARD MOTOR PRODUCTS Popular Fits: 3.8L V6 | HP4440 | 🇺🇸 US | Handypack | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | PT100 | 🇺🇸 US 🇨🇦 CA | Gray1-Way Female | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | PT2783 | 🇺🇸 US 🇨🇦 CA | LT Green4-Way Female | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S955 | 🇺🇸 US | Greenwith 2 Female Terminals | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S619 | 🇺🇸 US | Connector Shape: RoundTerminal Type: Blade | View on Amazon |
This table covers the harness connectors at the Oil Pressure Sender / Switch. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
6 Oil Pressure Sender / Switch Connector parts for the 2005 Buick Lacrosse come from 3 brands — STANDARD MOTOR PRODUCTS, GM GENUINE and ACDELCO. The "Popular" part is ACDELCO PT2319.
Part numbers include ACDELCO PT2319, STANDARD MOTOR PRODUCTS HP4440 and GM GENUINE PT100, among others listed above.
On-Board Diagnostic (OBD) Port Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 | PT1101 | 🇺🇸 US 🇨🇦 CA | Gray12-Way Female | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S1796 | 🇺🇸 US | Black | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P1474 | 🇺🇸 US | Universal Type | View on Amazon |
This table covers the harness connectors at the On-Board Diagnostic (OBD) Port. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
3 On-Board Diagnostic (OBD) Port Connector parts are listed for the 2005 Buick Lacrosse, from GM GENUINE, STANDARD MOTOR PRODUCTS and WELLS.
Part numbers include GM GENUINE PT1101, STANDARD MOTOR PRODUCTS S1796 and WELLS 1P1474.
Outside Mirror & Glass Assembly Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS Fits: 3.8L V6 | 1P3984 | 🇺🇸 US | View on Amazon |
This table covers the harness connectors at the Outside Mirror & Glass Assembly. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
One part is listed for the 2005 Buick Lacrosse — WELLS 1P3984.
Outside Mirror Drive Motor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Fits: 3.8L V6 | PT1811 | 🇺🇸 US | GM Original Equipment | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | PT3838 | 🇺🇸 US 🇨🇦 CA | Driver & Passenger Front Seat Inflatable Restraint System (AK5), Driver & Passenger Seat Inflatable Restraint (AY1) | View on Amazon |
This table covers the harness connectors at the Outside Mirror Drive Motor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
2 Outside Mirror Drive Motor Connector parts for the 2005 Buick Lacrosse come from 2 brands — ACDELCO and GM GENUINE.
This group includes ACDELCO PT1811 and GM GENUINE PT3838.
Outside Mirror Switch Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 | PT150 | 🇺🇸 US 🇨🇦 CA | Natural10-Way Female | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S1065 | 🇺🇸 US | Connector Shape: RectangleNumber of Splice Connectors Included: 10 | View on Amazon |
This table covers the harness connectors at the Outside Mirror Switch. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
2 Outside Mirror Switch Connector parts are listed for the 2005 Buick Lacrosse, from GM GENUINE and STANDARD MOTOR PRODUCTS.
Part numbers include GM GENUINE PT150 and STANDARD MOTOR PRODUCTS S1065.
Oxygen (O2) Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Popular Fits: 3.8L V6 | PT1373 | 🇺🇸 US 🇨🇦 CA | GM Original Equipment | View on Amazon |
| UNITED MOTOR PRODUCTS Popular Fits: 3.8L V6 | CON14 | 🇺🇸 US | with 4 Female Terminalswith Gray and Blue Connector | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | PT2786 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | PT1069 | 🇺🇸 US 🇨🇦 CA | Inline To Engine HarnessGray | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S912 | 🇺🇸 US | Upstream SensorColor Code Black and Blue | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S926 | 🇺🇸 US | Downstream Sensorwhite | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P1677 | 🇺🇸 US | 4 Terminal, Gray Housing, Square Shape, Male Connector, Body Side | View on Amazon |
This table covers the harness connectors at the Oxygen (O2) Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
7 Oxygen (O2) Sensor Connector parts are listed for the 2005 Buick Lacrosse, from GM GENUINE, STANDARD MOTOR PRODUCTS, ACDELCO and 2 other brands. ACDELCO PT1373 carries the "Popular" badge.
This group includes ACDELCO PT1373, UNITED MOTOR PRODUCTS CON14 and GM GENUINE PT2786 and the remaining parts above.
Park Assist (PAS) Camera Module Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S908 | 🇺🇸 US | Connector Shape: SquareWiring Harness Length (mm): 457.2 | View on Amazon |
This table covers the harness connectors at the Park Assist (PAS) Camera Module. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
This group shows a single part: STANDARD MOTOR PRODUCTS S908.
Parking / Turn Signal Lamp Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Popular Fits: 3.8L V6 | 645131 | 🇺🇸 US | Black | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | PT3833 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | PT114 | 🇺🇸 US 🇨🇦 CA | Shape: RectangularBlack | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S569 | 🇺🇸 US | Connector Shape: OvalWiring Harness Length (In): 8 | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P1050 | 🇺🇸 US | Wiring Harness Length: 8.38 In | View on Amazon |
This table covers the harness connectors at the Parking / Turn Signal Lamp. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
5 Parking / Turn Signal Lamp Connector parts are listed for the 2005 Buick Lacrosse, from GM GENUINE, DORMAN, STANDARD MOTOR PRODUCTS and 1 other brand. DORMAN 645131 carries the "Popular" badge.
This group includes DORMAN 645131, GM GENUINE PT3833 and GM GENUINE PT114 and the remaining parts above.
Parking Aid Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 | 84999471 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | PT2626 | 🇺🇸 US 🇨🇦 CA | Rear3-WAY FEMALE BLACK | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P2024 | 🇺🇸 US | Wiring Harness Length: 16.0 In | View on Amazon |
This table covers the harness connectors at the Parking Aid Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
3 Parking Aid Sensor Connector parts are listed for the 2005 Buick Lacrosse, from GM GENUINE and WELLS.
This group includes GM GENUINE 84999471, GM GENUINE PT2626 and WELLS 1P2024.
Power Distribution Block Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS Fits: 3.8L V6 | 1P3959 | 🇺🇸 US | with 8 Terminals | View on Amazon |
This table covers the harness connectors at the Power Distribution Block. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
One part is listed for the 2005 Buick Lacrosse — WELLS 1P3959.
Power Seat Motor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S1387 | 🇺🇸 US | Yellowwith 2 Male Terminals | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S1104 | 🇺🇸 US | Connector Shape: RectangleGender: Female | View on Amazon |
This table covers the harness connectors at the Power Seat Motor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
2 Power Seat Motor Connector parts for the 2005 Buick Lacrosse come from STANDARD MOTOR PRODUCTS.
This group includes STANDARD MOTOR PRODUCTS S1387 and STANDARD MOTOR PRODUCTS S1104.
Power Seat Switch Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S1793 | 🇺🇸 US | Black | View on Amazon |
This table covers the harness connectors at the Power Seat Switch. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
One part is listed for the 2005 Buick Lacrosse — STANDARD MOTOR PRODUCTS S1793.
Power Steering Pressure Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 | PT2830 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
This table covers the harness connectors at the Power Steering Pressure Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
This group shows a single part: GM GENUINE PT2830.
Power Window Switch Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Popular Fits: 3.8L V6 | 645702 | 🇺🇸 US | Female | View on Amazon |
| GM GENUINE Popular Fits: 3.8L V6 | PT1346 | 🇺🇸 US 🇨🇦 CA | BlackConnector | View on Amazon |
| GM GENUINE Popular Fits: 3.8L V6 | PT2195 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| ACDELCO Fits: 3.8L V6 | PT2372 | 🇺🇸 US 🇨🇦 CA | Gold | View on Amazon |
| DORMAN Fits: 3.8L V6 | 973300 | 🇺🇸 US | Harness | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | PT1208 | 🇺🇸 US 🇨🇦 CA | RightBrown | View on Amazon |
| HOLSTEIN Fits: 3.8L V6 | 2HAR0047 | 🇺🇸 US | 5 Terminals | View on Amazon |
| SKP Fits: 3.8L V6 | SKS1619 | 🇺🇸 US | Fits Grayor 5 Terminal Female | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | HP4652 | 🇺🇸 US | Handy PackBlack | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S1619 | 🇺🇸 US | Black | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S804 | 🇺🇸 US | Length (In): 0.875Wire Gauge (GA): 14 | View on Amazon |
| UNITED MOTOR PRODUCTS Fits: 3.8L V6 | CON31 | 🇺🇸 US | with 2 Terminals | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P4008 | 🇺🇸 US | with 6 Terminals | View on Amazon |
This table covers the harness connectors at the Power Window Switch. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
13 Power Window Switch Connector parts for the 2005 Buick Lacrosse come from 8 brands — GM GENUINE, STANDARD MOTOR PRODUCTS, DORMAN and 5 other brands. The "Popular" part is DORMAN 645702.
Powertrain Control Module (PCM) Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 | 167504 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P3960 | 🇺🇸 US | without 73 Terminalswith 73 Terminals | View on Amazon |
This table covers the harness connectors at the Powertrain Control Module (PCM). Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
2 Powertrain Control Module (PCM) Connector parts for the 2005 Buick Lacrosse come from 2 brands — GM GENUINE and WELLS.
Part numbers include GM GENUINE 167504 and WELLS 1P3960.
Radiator Fan Motor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Popular Fits: 3.8L V6 | PT1231 | 🇺🇸 US 🇨🇦 CA | MP 280Gray | View on Amazon |
| ROSTRA Popular Fits: 3.8L V6 | 610045 | 🇺🇸 US | View on Amazon | |
| SKP Popular Fits: 3.8L V6 | SKS1352 | 🇺🇸 US | Fits Grayor 4 Terminal Female | View on Amazon |
| ACDELCO Fits: 3.8L V6 | PT2304 | 🇺🇸 US 🇨🇦 CA | Gold | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | PT189 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | HP4430 | 🇺🇸 US | Handypack | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S568 | 🇺🇸 US | Connector Shape: OvalWiring Harness Length (mm): 196.85 | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | HP4795 | 🇺🇸 US | HandypackWeather Resistant: YES | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S1352 | 🇺🇸 US | Contact Terminal Material: MetalWeather Resistant: YES | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S1340 | 🇺🇸 US | Gauge: 10 GAWiring Harness Length (mm): 457.2 | View on Amazon |
| UNITED MOTOR PRODUCTS Fits: 3.8L V6 | CON87 | 🇺🇸 US | with 2 Wires | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P1028 | 🇺🇸 US | Wiring Harness Length: 8.25 In | View on Amazon |
This table covers the harness connectors at the Radiator Fan Motor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
12 Radiator Fan Motor Connector parts are listed for the 2005 Buick Lacrosse, from STANDARD MOTOR PRODUCTS, GM GENUINE, ROSTRA and 4 other brands. GM GENUINE PT1231 carries the "Popular" badge.
Radiator Fan Relay Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Popular Fits: 3.8L V6 | S803 | 🇺🇸 US | Connector Shape: SquareWire Gauge (GA): 12, 14 | View on Amazon |
| UNITED MOTOR PRODUCTS Popular Fits: 3.8L V6 | CON164 | 🇺🇸 US | Terminal Gender: FemaleTerminal Quantity: 5 | View on Amazon |
| ACDELCO Fits: 3.8L V6 | PT2371 | 🇺🇸 US 🇨🇦 CA | GoldShape: Square | View on Amazon |
| FOUR SEASONS Fits: 3.8L V6 | 37232 | 🇺🇸 US | 5 Terminal MaleMini Terminal | View on Amazon |
| ROSTRA Fits: 3.8L V6 | 610138 | 🇺🇸 US | View on Amazon | |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | HP4655 | 🇺🇸 US | HandypackConnector Shape: Square | View on Amazon |
This table covers the harness connectors at the Radiator Fan Relay. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
6 Radiator Fan Relay Connector parts are listed for the 2005 Buick Lacrosse, from STANDARD MOTOR PRODUCTS, UNITED MOTOR PRODUCTS, ACDELCO and 2 other brands. STANDARD MOTOR PRODUCTS S803 carries the "Popular" badge.
Part numbers include STANDARD MOTOR PRODUCTS S803, UNITED MOTOR PRODUCTS CON164 and ACDELCO PT2371, among others listed above.
Radio Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| METRA Fits: 3.8L V6 | 7120031 | 🇺🇸 US | OEM Radio HarnessFor OEM Radio | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S1059 | 🇺🇸 US | Wire Gauge (GA): 16, 20 | View on Amazon |
This table covers the harness connectors at the Radio. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
2 Radio Connector parts for the 2005 Buick Lacrosse come from 2 brands — METRA and STANDARD MOTOR PRODUCTS.
Part numbers include METRA 7120031 and STANDARD MOTOR PRODUCTS S1059.
Repair Harness
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ROSTRA Popular Fits: 3.8L V6 | 610825 | 🇺🇸 US | with 8 Terminal(s)with 1 Female Connectors | View on Amazon |
| ATP Fits: 3.8L V6 | JE25 | 🇺🇸 US | Round | View on Amazon |
| ATP Fits: 3.8L V6 | JE34 | 🇺🇸 US | External Repair/Test Harness (20 Pins, White Wires) | View on Amazon |
| ROSTRA Fits: 3.8L V6 | 610724 | 🇺🇸 US | with 10 Terminal(s)with 1 Female Connectors | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P1584 | 🇺🇸 US | with 10 TerminalsFemale End | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P1591 | 🇺🇸 US | with 8 Terminalswith Female Connector | View on Amazon |
This table covers the Repair harnesses.
6 Repair Harness parts are listed for the 2005 Buick Lacrosse, from ROSTRA, ATP and WELLS. ROSTRA 610825 carries the "Popular" badge.
Part numbers include ROSTRA 610825, ATP JE25 and ATP JE34, among others listed above.
Roof Accessory Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 | PT1570 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P3379 | 🇺🇸 US | with 8 Terminalswith Male Connector | View on Amazon |
This table covers the harness connectors at the Roof Accessory. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
2 Roof Accessory Connector parts are listed for the 2005 Buick Lacrosse, from GM GENUINE and WELLS.
Part numbers include GM GENUINE PT1570 and WELLS 1P3379.
Seat Heater Switch Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 | PT1071 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P1906 | 🇺🇸 US | Right | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P1949 | 🇺🇸 US | Left | View on Amazon |
This table covers the harness connectors at the Seat Heater Switch. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
3 Seat Heater Switch Connector parts are listed for the 2005 Buick Lacrosse, from WELLS and GM GENUINE.
This group includes GM GENUINE PT1071, WELLS 1P1906 and WELLS 1P1949.
Shift Interlock Control Module Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S1097 | 🇺🇸 US | Connector Shape: RectangleGender: Male | View on Amazon |
This table covers the harness connectors at the Shift Interlock Control Module. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
One part is listed for the 2005 Buick Lacrosse — STANDARD MOTOR PRODUCTS S1097.
Shift Solenoid Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S633 | 🇺🇸 US | Black | View on Amazon |
This table covers the harness connectors at the Shift Solenoid. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
This group shows a single part: STANDARD MOTOR PRODUCTS S633.
Side Marker Lamp Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 | PT247 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P3903 | 🇺🇸 US | with 2 Terminals | View on Amazon |
This table covers the harness connectors at the Side Marker Lamp. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
2 Side Marker Lamp Connector parts for the 2005 Buick Lacrosse come from 2 brands — GM GENUINE and WELLS.
Part numbers include GM GENUINE PT247 and WELLS 1P3903.
Speaker Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Popular Fits: 3.8L V6 | PT3835 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| METRA Popular Fits: 3.8L V6 | 724568 | 🇺🇸 US | TURBOWireSpeaker Harness | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | PT146 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | PT3836 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P1012 | 🇺🇸 US | Terminal Gender: Female | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P1663 | 🇺🇸 US | Gender: Male | View on Amazon |
This table covers the harness connectors at the Speaker. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
6 Speaker Connector parts for the 2005 Buick Lacrosse come from 3 brands — GM GENUINE, WELLS and METRA. The "Popular" part is GM GENUINE PT3835.
Listed part numbers: GM GENUINE PT3835, METRA 724568 and GM GENUINE PT146, plus the other parts above.
Speed Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SKP Popular Fits: 3.8L V6 | SKTX3A | 🇺🇸 US | Fits Blackor 2 Terminal Female | View on Amazon |
| STANDARD MOTOR PRODUCTS Popular Fits: 3.8L V6 | TX3A | 🇺🇸 US | Wiring Harness Length (mm): 158.75Black | View on Amazon |
| WELLS Popular Fits: 3.8L V6 | 1P1006 | 🇺🇸 US | Connector Shape: OblongWiring Harness Length: 9.5 In | View on Amazon |
| ACDELCO Fits: 3.8L V6 | PT2386 | 🇺🇸 US 🇨🇦 CA | GoldShape: Square | View on Amazon |
| DORMAN Fits: 3.8L V6 | 645782 | 🇺🇸 US | View on Amazon | |
| GM GENUINE Fits: 3.8L V6 | PT2437 | 🇺🇸 US 🇨🇦 CA | Terminal Type: PinBlack | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | PT1798 | 🇺🇸 US 🇨🇦 CA | Gray2-Way Female | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | HP3840 | 🇺🇸 US | HandypackWiring Harness Length (mm): 158.75 | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S1487 | 🇺🇸 US | View on Amazon | |
| UNITED MOTOR PRODUCTS Fits: 3.8L V6 | CON203 | 🇺🇸 US | Transmission Output | View on Amazon |
| WALKER PRODUCTS Fits: 3.8L V6 | 2111500 | 🇺🇸 US | Terminal Quantity: 2Includes O-Ring | View on Amazon |
This table covers the harness connectors at the Speed Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
11 Speed Sensor Connector parts for the 2005 Buick Lacrosse come from 8 brands — STANDARD MOTOR PRODUCTS, GM GENUINE, SKP and 5 other brands. The "Popular" part is SKP SKTX3A.
Starter Solenoid Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S1056 | 🇺🇸 US | Connector Shape: Rectangleblack | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S1131 | 🇺🇸 US | Black | View on Amazon |
This table covers the harness connectors at the Starter Solenoid. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
STANDARD MOTOR PRODUCTS supplies both parts for the 2005 Buick Lacrosse.
This group includes STANDARD MOTOR PRODUCTS S1056 and STANDARD MOTOR PRODUCTS S1131.
Steering Column Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 | 86532982 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the harness connectors at the Steering Column. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
This group shows a single part: GM GENUINE 86532982.
Steering Wheel Position Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS Fits: 3.8L V6 | 1P4208 | 🇺🇸 US | Angle Sensor | View on Amazon |
This table covers the harness connectors at the Steering Wheel Position Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
This group shows a single part: WELLS 1P4208.
Sunroof / Sunshade Switch Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S1618 | 🇺🇸 US | Connector Shape: RectangleWire Gauge (GA): 20 | View on Amazon |
This table covers the harness connectors at the Sunroof / Sunshade Switch. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
One part is listed for the 2005 Buick Lacrosse — STANDARD MOTOR PRODUCTS S1618.
Sunroof Motor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 | PT126 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
This table covers the harness connectors at the Sunroof Motor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
This group shows a single part: GM GENUINE PT126.
Tail Lamp Assembly Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Popular Fits: 3.8L V6 | PT2623 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| WELLS Popular Fits: 3.8L V6 | 1P1050 | 🇺🇸 US | Wiring Harness Length: 8.38 In | View on Amazon |
| FAMOUS BRAND Fits: 3.8L V6 | PTA1448 | 🇺🇸 US 🇨🇦 CA | Tail Lamp Repair Connector | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | PT267 | 🇺🇸 US 🇨🇦 CA | Gray6-Way Male | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | PT3833 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S1639 | 🇺🇸 US | Connector Shape: RectangleWiring Harness Length (In): 16.5 | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S1491 | 🇺🇸 US | Connector Shape: Oval | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P3996 | 🇺🇸 US | Terminal Type: BladeWiring Harness Length: 17.75 In | View on Amazon |
This table covers the harness connectors at the Tail Lamp Assembly. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
8 Tail Lamp Assembly Connector parts are listed for the 2005 Buick Lacrosse, from GM GENUINE, WELLS, STANDARD MOTOR PRODUCTS and 1 other brand. GM GENUINE PT2623 carries the "Popular" badge.
Listed part numbers: GM GENUINE PT2623, WELLS 1P1050 and FAMOUS BRAND PTA1448, plus the other parts above.
Temperature Sender / Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SKP Popular Fits: 3.8L V6 | SKTX3A | 🇺🇸 US | Black2 Terminal Female | View on Amazon |
| STANDARD MOTOR PRODUCTS Popular Fits: 3.8L V6 | TX3A | 🇺🇸 US | Wiring Harness Length (mm): 158.75Black | View on Amazon |
| WELLS Popular Fits: 3.8L V6 | 1P1006 | 🇺🇸 US | Connector Shape: OblongWiring Harness Length: 9.5 In | View on Amazon |
| ACDELCO Fits: 3.8L V6 | PT2386 | 🇺🇸 US 🇨🇦 CA | GoldShape: Square | View on Amazon |
| FOUR SEASONS Fits: 3.8L V6 | 37231 | 🇺🇸 US | 2 Terminal Malewith Oval Connector | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | PT1798 | 🇺🇸 US 🇨🇦 CA | Gray2-Way Female | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | PT2183 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| ROSTRA Fits: 3.8L V6 | 610011 | 🇺🇸 US | View on Amazon | |
| SKP Fits: 3.8L V6 | SKS1024 | 🇺🇸 US | Fits Black and Orang | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | HP3840 | 🇺🇸 US | HandypackWiring Harness Length (mm): 158.75 | View on Amazon |
| UNITED MOTOR PRODUCTS Fits: 3.8L V6 | CON5 | 🇺🇸 US | View on Amazon | |
| WALKER PRODUCTS Fits: 3.8L V6 | 2111500 | 🇺🇸 US | Terminal Quantity: 2Includes O-Ring | View on Amazon |
This table covers the harness connectors at the Temperature Sender / Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
12 Temperature Sender / Sensor Connector parts are listed for the 2005 Buick Lacrosse, from SKP, STANDARD MOTOR PRODUCTS, GM GENUINE and 6 other brands. SKP SKTX3A carries the "Popular" badge.
Throttle Position Sensor (TPS) Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Popular Fits: 3.8L V6 | HP4440 | 🇺🇸 US | Handypack | View on Amazon |
| WELLS Popular Fits: 3.8L V6 | 1P1065 | 🇺🇸 US | Terminal Gender: Female | View on Amazon |
| ACDELCO Fits: 3.8L V6 | PT2319 | 🇺🇸 US 🇨🇦 CA | GoldTerminal Gender: Female | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | PT3751 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S619 | 🇺🇸 US | Connector Shape: RoundTerminal Type: Blade | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S1419 | 🇺🇸 US | Connector Shape: OvalGender: Female | View on Amazon |
| UNITED MOTOR PRODUCTS Fits: 3.8L V6 | CON110 | 🇺🇸 US | with 3 Female Terminalswith Black and Purple Connector | View on Amazon |
This table covers the harness connectors at the Throttle Position Sensor (TPS). Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
7 Throttle Position Sensor (TPS) Connector parts for the 2005 Buick Lacrosse come from 5 brands — STANDARD MOTOR PRODUCTS, WELLS, ACDELCO and 2 other brands. The "Popular" part is STANDARD MOTOR PRODUCTS HP4440.
Listed part numbers: STANDARD MOTOR PRODUCTS HP4440, WELLS 1P1065 and ACDELCO PT2319, plus the other parts above.
Trailer Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CURT Fits: 3.8L V6 | 56340 | 🇺🇸 US | Custom Wiring Harness4-Way Flat | View on Amazon |
This table covers the trailer-lighting connectors at the hitch. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
This group shows a single part: CURT 56340.
Transmission Fluid Temperature Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS Fits: 3.8L V6 | 1P1364 | 🇺🇸 US | Fits with 2 Terminalsor with 2 Terminal(s)Manual Trans | View on Amazon |
This table covers the harness connectors at the Transmission Fluid Temperature Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
One part is listed for the 2005 Buick Lacrosse — WELLS 1P1364.
Transmission-Automatic Wiring Harness / Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ROSTRA Popular Fits: 3.8L V6 | 3500083 | 🇺🇸 US | GM Universal External Repair & Test Harness 20 Pins & White Wires | View on Amazon |
| ATP Fits: 3.8L V6 | JE24 | 🇺🇸 US | with 7-Pin Clip InPosition: Internal | View on Amazon |
| ATP Fits: 3.8L V6 | JE31 | 🇺🇸 US | View on Amazon | |
| PIONEER Fits: 3.8L V6 | 772036 | 🇺🇸 US | with 7-Pin Clip InInternal | View on Amazon |
| ROSTRA Fits: 3.8L V6 | 3500075 | 🇺🇸 US | Universal Internal Wire Harness | View on Amazon |
This table covers the wiring-harness connectors at the Transmission-Automatic. Typical signs include an intermittent fault that moves when you wiggle the harness, or a melted or corroded plug. Match terminal count and keyway. Repair with heat-shrink terminals, not twist-and-tape.
5 Transmission-Automatic Wiring Harness / Connector parts for the 2005 Buick Lacrosse come from 3 brands — ROSTRA, ATP and PIONEER. The "Popular" part is ROSTRA 3500083.
Listed part numbers: ROSTRA 3500083, ATP JE24 and ATP JE31, plus the other parts above.
Trunk / Cargo Area Lamp Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 | PT146 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
This table covers the harness connectors at the Trunk / Cargo Area Lamp. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
One part is listed for the 2005 Buick Lacrosse — GM GENUINE PT146.
Trunk Lock Actuator Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Popular Fits: 3.8L V6 | PT3835 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | PT2719 | 🇺🇸 US 🇨🇦 CA | BlackLength: 8.5 In | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S1097 | 🇺🇸 US | Connector Shape: RectangleGender: Male | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P1620 | 🇺🇸 US | Connector Gender: Female | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P1695 | 🇺🇸 US | Wiring Harness Length: 16.5 In | View on Amazon |
This table covers the harness connectors at the Trunk Lock Actuator. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
5 Trunk Lock Actuator Connector parts are listed for the 2005 Buick Lacrosse, from GM GENUINE, WELLS and STANDARD MOTOR PRODUCTS. GM GENUINE PT3835 carries the "Popular" badge.
This group includes GM GENUINE PT3835, GM GENUINE PT2719 and STANDARD MOTOR PRODUCTS S1097 and the remaining parts above.
Trunk Release Relay Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS Fits: 3.8L V6 | 1P1184 | 🇺🇸 US | Wiring Harness Length: 7.0 In | View on Amazon |
This table covers the harness connectors at the Trunk Release Relay. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
One part is listed for the 2005 Buick Lacrosse — WELLS 1P1184.
Turn Signal Switch Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Popular Fits: 3.8L V6 | S1399 | 🇺🇸 US | Black | View on Amazon |
| FAMOUS BRAND Fits: 3.8L V6 | PTA1448 | 🇺🇸 US 🇨🇦 CA | Turn Signal Lamp Connector | View on Amazon |
| ROSTRA Fits: 3.8L V6 | 610390 | 🇺🇸 US | View on Amazon | |
| WELLS Fits: 3.8L V6 | 1P1050 | 🇺🇸 US | Wiring Harness Length: 8.38 In | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P1651 | 🇺🇸 US | with 8 Terminals | View on Amazon |
This table covers the harness connectors at the Turn Signal Switch. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
5 Turn Signal Switch Connector parts for the 2005 Buick Lacrosse come from 4 brands — WELLS, STANDARD MOTOR PRODUCTS, FAMOUS BRAND and 1 other brand. The "Popular" part is STANDARD MOTOR PRODUCTS S1399.
Listed part numbers: STANDARD MOTOR PRODUCTS S1399, FAMOUS BRAND PTA1448 and ROSTRA 610390, plus the other parts above.
Vapor Canister Purge Valve / Solenoid Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Popular Fits: 3.8L V6 | PT2784 | 🇺🇸 US 🇨🇦 CA | Red2-Way Female | View on Amazon |
| WELLS Popular Fits: 3.8L V6 | 1P1479 | 🇺🇸 US | Gender: MaleWiring Harness Length: 15.5 In | View on Amazon |
| DORMAN Fits: 3.8L V6 | 645631 | 🇺🇸 US | Red | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | PT2044 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | HP4625 | 🇺🇸 US | HandypackTerminal Type: Blade Terminals | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S1350 | 🇺🇸 US | Length (In): 1.125Terminal Type: Blade Terminals | View on Amazon |
| UNITED MOTOR PRODUCTS Fits: 3.8L V6 | CON19 | 🇺🇸 US | Color: Gray/BlueTerminal Gender: Female | View on Amazon |
This table covers the harness connectors at the Vapor Canister Purge Valve / Solenoid. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
7 Vapor Canister Purge Valve / Solenoid Connector parts are listed for the 2005 Buick Lacrosse, from GM GENUINE, STANDARD MOTOR PRODUCTS, WELLS and 2 other brands. GM GENUINE PT2784 carries the "Popular" badge.
Listed part numbers: GM GENUINE PT2784, WELLS 1P1479 and DORMAN 645631, plus the other parts above.
Vapor Canister Vent Valve / Solenoid Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Popular Fits: 3.8L V6 | PT2784 | 🇺🇸 US 🇨🇦 CA | Red2-Way Female | View on Amazon |
| WELLS Popular Fits: 3.8L V6 | 1P1479 | 🇺🇸 US | Gender: MaleWiring Harness Length: 15.5 In | View on Amazon |
| DORMAN Fits: 3.8L V6 | 645631 | 🇺🇸 US | Red | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | HP4625 | 🇺🇸 US | HandypackTerminal Type: Blade Terminals | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S1350 | 🇺🇸 US | Length (In): 1.125Terminal Type: Blade Terminals | View on Amazon |
| UNITED MOTOR PRODUCTS Fits: 3.8L V6 | CON19 | 🇺🇸 US | Color: Gray/BlueTerminal Gender: Female | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P1793 | 🇺🇸 US | Gender: Male FemaleWiring Harness Length: 5.5 In | View on Amazon |
This table covers the harness connectors at the Vapor Canister Vent Valve / Solenoid. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
7 Vapor Canister Vent Valve / Solenoid Connector parts are listed for the 2005 Buick Lacrosse, from WELLS, STANDARD MOTOR PRODUCTS, GM GENUINE and 2 other brands. GM GENUINE PT2784 carries the "Popular" badge.
Listed part numbers: GM GENUINE PT2784, WELLS 1P1479 and DORMAN 645631, plus the other parts above.
Variable Power Steering Solenoid Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 | PT2830 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
This table covers the harness connectors at the Variable Power Steering Solenoid. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
This group shows a single part: GM GENUINE PT2830.
Variable Valve Timing (VVT) Solenoid Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S1716 | 🇺🇸 US | Connector Shape: OvalWire Gauge (GA): 14 | View on Amazon |
This table covers the harness connectors at the Variable Valve Timing (VVT) Solenoid. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
One part is listed for the 2005 Buick Lacrosse — STANDARD MOTOR PRODUCTS S1716.
Washer Fluid Level Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 | PT1798 | 🇺🇸 US 🇨🇦 CA | Gray2-Way Female | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | PT1780 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| ROSTRA Fits: 3.8L V6 | 610108 | 🇺🇸 US | View on Amazon | |
| WELLS Fits: 3.8L V6 | 1P1362 | 🇺🇸 US | Connector Shape: OblongTerminal Quantity: 2 | View on Amazon |
This table covers the harness connectors at the Washer Fluid Level Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
4 Washer Fluid Level Sensor Connector parts are listed for the 2005 Buick Lacrosse, from GM GENUINE, ROSTRA and WELLS.
Listed part numbers: GM GENUINE PT1798, GM GENUINE PT1780 and ROSTRA 610108, plus the other parts above.
Washer Pump Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 | PT2830 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| ROSTRA Fits: 3.8L V6 | 610108 | 🇺🇸 US | View on Amazon | |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S1330 | 🇺🇸 US | Black | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P1362 | 🇺🇸 US | Connector Shape: OblongTerminal Quantity: 2 | View on Amazon |
This table covers the harness connectors at the Washer Pump. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
4 Washer Pump Connector parts are listed for the 2005 Buick Lacrosse, from GM GENUINE, ROSTRA, STANDARD MOTOR PRODUCTS and 1 other brand.
This group includes GM GENUINE PT2830, ROSTRA 610108 and STANDARD MOTOR PRODUCTS S1330 and the remaining parts above.
Washer Pump Relay Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| UNITED MOTOR PRODUCTS Popular Fits: 3.8L V6 | CON164 | 🇺🇸 US | Terminal Gender: FemaleTerminal Quantity: 5 | View on Amazon |
| ACDELCO Fits: 3.8L V6 | PT2371 | 🇺🇸 US 🇨🇦 CA | GoldShape: Square | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | HP4655 | 🇺🇸 US | HandypackConnector Shape: Square | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S803 | 🇺🇸 US | Connector Shape: SquareWire Gauge (GA): 12, 14 | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P1184 | 🇺🇸 US | Wiring Harness Length: 7.0 In | View on Amazon |
This table covers the harness connectors at the Washer Pump Relay. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
5 Washer Pump Relay Connector parts for the 2005 Buick Lacrosse come from 4 brands — STANDARD MOTOR PRODUCTS, UNITED MOTOR PRODUCTS, ACDELCO and 1 other brand. The "Popular" part is UNITED MOTOR PRODUCTS CON164.
Part numbers include UNITED MOTOR PRODUCTS CON164, ACDELCO PT2371 and STANDARD MOTOR PRODUCTS HP4655, among others listed above.
Window Defroster Motor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 | PT2645 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S1329 | 🇺🇸 US | Length (In): 1Wiring Harness Length (In): 17.5 | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P2077 | 🇺🇸 US | View on Amazon | |
| WELLS Fits: 3.8L V6 | 1P1184 | 🇺🇸 US | Wiring Harness Length: 7.0 In | View on Amazon |
This table covers the harness connectors at the Window Defroster Motor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
4 Window Defroster Motor Connector parts for the 2005 Buick Lacrosse come from 3 brands — WELLS, GM GENUINE and STANDARD MOTOR PRODUCTS.
This group includes GM GENUINE PT2645, STANDARD MOTOR PRODUCTS S1329 and WELLS 1P2077 and the remaining parts above.
Window Motor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: 3.8L V6 | 645200 | 🇺🇸 US | Gray | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | PT2072 | 🇺🇸 US 🇨🇦 CA | Gray2-Way Female | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S1416 | 🇺🇸 US | View on Amazon | |
| WELLS Fits: 3.8L V6 | 1P1587 | 🇺🇸 US | View on Amazon |
This table covers the harness connectors at the Window Motor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
4 Window Motor Connector parts for the 2005 Buick Lacrosse come from 4 brands — DORMAN, GM GENUINE, STANDARD MOTOR PRODUCTS and 1 other brand.
Listed part numbers: DORMAN 645200, GM GENUINE PT2072 and STANDARD MOTOR PRODUCTS S1416, plus the other parts above.
Wiper / Washer Switch Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S1399 | 🇺🇸 US | Black | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S1598 | 🇺🇸 US | Connector Shape: Rectangleblack | View on Amazon |
This table covers the harness connectors at the Wiper / Washer Switch. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
STANDARD MOTOR PRODUCTS supplies both parts for the 2005 Buick Lacrosse.
Listed part numbers: STANDARD MOTOR PRODUCTS S1399 and STANDARD MOTOR PRODUCTS S1598.
Wiper Motor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Popular Fits: 3.8L V6 | PT2116 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| GM GENUINE Popular Fits: 3.8L V6 | PT2887 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | HP4655 | 🇺🇸 US | HandypackConnector Shape: Square | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S803 | 🇺🇸 US | Connector Shape: SquareWire Gauge (GA): 12, 14 | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S1265 | 🇺🇸 US | Black | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S1451 | 🇺🇸 US | Blackwith 5 Female Terminals | View on Amazon |
| UNITED MOTOR PRODUCTS Fits: 3.8L V6 | CON18 | 🇺🇸 US | with 4 Female Terminalswith Black Connector | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P2604 | 🇺🇸 US | with 4 TerminalsBlack | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P2571 | 🇺🇸 US | with 6 TerminalsBlack | View on Amazon |
This table covers the harness connectors at the Wiper Motor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
9 Wiper Motor Connector parts are listed for the 2005 Buick Lacrosse, from STANDARD MOTOR PRODUCTS, GM GENUINE, WELLS and 1 other brand. GM GENUINE PT2116 carries the "Popular" badge.
Listed part numbers: GM GENUINE PT2116, GM GENUINE PT2887 and STANDARD MOTOR PRODUCTS HP4655, plus the other parts above.
Wiper Motor Relay Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Fits: 3.8L V6 | PT2371 | 🇺🇸 US 🇨🇦 CA | GoldShape: Square | View on Amazon |
| UNITED MOTOR PRODUCTS Fits: 3.8L V6 | CON164 | 🇺🇸 US | Terminal Gender: FemaleTerminal Quantity: 5 | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P1184 | 🇺🇸 US | Wiring Harness Length: 7.0 In | View on Amazon |
This table covers the harness connectors at the Wiper Motor Relay. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
3 Wiper Motor Relay Connector parts for the 2005 Buick Lacrosse come from 3 brands — ACDELCO, UNITED MOTOR PRODUCTS and WELLS.
Listed part numbers: ACDELCO PT2371, UNITED MOTOR PRODUCTS CON164 and WELLS 1P1184.
Yaw Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Popular Fits: 3.8L V6 | 645234 | 🇺🇸 US | 6 Cavity | View on Amazon |
| GM GENUINE Fits: 3.8L V6 | PT1475 | 🇺🇸 US 🇨🇦 CA | Terminal Type: Blade PinBlack | View on Amazon |
| ROSTRA Fits: 3.8L V6 | 610709 | 🇺🇸 US | with 6 Terminal(s)with 1 Female Connectors | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 | S1057 | 🇺🇸 US | Connector Shape: OvalLength (In): 1 | View on Amazon |
| WELLS Fits: 3.8L V6 | 1P2399 | 🇺🇸 US | with 6 TerminalsBlack | View on Amazon |
This table covers the harness connectors at the Yaw Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
5 Yaw Sensor Connector parts for the 2005 Buick Lacrosse come from 5 brands — DORMAN, GM GENUINE, ROSTRA and 2 other brands. The "Popular" part is DORMAN 645234.
This group includes DORMAN 645234, GM GENUINE PT1475 and ROSTRA 610709 and the remaining parts above.
Buying Electrical Connector Parts for a 2005 Buick Lacrosse
On this vehicle, the connector system supplies the pigtails and connector bodies that terminate the vehicle harness at lamps, sensors and modules.
- Match the engine first. Every electrical connector part here is engine-specific; each row shows which engine(s) it fits.
- Read the notes on each row for position, trim and spec qualifiers before you order.
- Where labor overlaps, use heat-shrink crimp connectors rather than twist-and-tape for any pigtail splice, especially outside the cabin.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Blower Motor Control Module / Resistor Connector and Camshaft Position Sensor Connector .
Frequently Asked Questions
How many electrical connector parts fit the 2005 Buick Lacrosse?
Our catalog currently lists 592 electrical connector parts for the 2005 Buick Lacrosse across 143 subcategories and 21 brands, covering both the 3.6L V6 and the 3.8L V6. Each part is matched to the engine(s) it fits.
Do electrical connector parts differ between 2005 Buick Lacrosse engines?
Yes. Every electrical connector part on this page is engine-specific. Each row shows which engine(s) it fits — use the filter at the top to hide the rest. If you're unsure which engine you have, check the emissions label under the hood or the 8th character of your VIN.
What are the signs of electrical connector problems on a 2005 Buick Lacrosse?
Common symptoms include intermittent faults that move when the harness is wiggled, green corrosion inside a plug, or melted connector housings near heat sources. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.
What should I replace at the same time?
Where labor overlaps, use heat-shrink crimp connectors rather than twist-and-tape for any pigtail splice, especially outside the cabin.
What do the market flags (US, CA, MX) on each part mean?
They show the market for which the manufacturer published application data for that part — where the vehicle was first sold, not where the part was made. If your 2005 Buick Lacrosse was originally sold in the US, the safest choice is a part marked for the US market.
How do I make sure a part fits my 2005 Buick Lacrosse?
First match the engine — each row shows which engine(s) the part fits. Then match the connector by terminal count and keyway, not just appearance — many families look identical but will not lock. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2005 Buick Lacrosse
Electrical Connector Parts for Other Buick Lacrosse Years
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