2018 Chevrolet Impala Electrical Connector Parts

Engine:

Showing parts for every engine. Select an engine to see only what fits.

The 2018 Chevrolet Impala has 135 electrical connector parts with verified fitment on this page — 51 part types and 16 brands, covering both the 2.5L L4 and the 3.6L V6. Each part includes a manufacturer part number and application notes.

The connector system on the 2018 Chevrolet Impala supplies the pigtails and connector bodies that terminate the vehicle harness at lamps, sensors and modules. The largest groups are Wire Terminal (10 parts), Body Wiring Harness / Connector (9 parts) and Engine Wiring Harness / Connector (9 parts). The other 48 part types cover the remaining 107 parts.

A/C Compressor Connector

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 2.5L L4 PT3702
🇺🇸 US 🇨🇦 CA
Black
Fitment notes — GM GENUINE PT3702
Black
Si Electrical Code: Q46A/C Compressor Solenoid Valve2-Way Femalewith Leads1.5mm
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This table covers the harness connectors at the A/C Compressor. 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.

A/C Refrigerant Pressure Switch Connector

Brand Part Number Markets Notes Buy
FOUR SEASONS Fits: 2.5L L4 37236
🇺🇸 US 🇨🇦 CA
3 Terminal Male
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ROSTRA Fits: 2.5L L4 610225
🇺🇸 US 🇨🇦 CA
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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.

ABS Wheel Speed Sensor Connector

Brand Part Number Markets Notes Buy
STANDARD MOTOR PRODUCTS Popular Fits: 2.5L L4 HP3945
🇺🇸 US 🇨🇦 CA
HandypackConnector Shape: Square
Fitment notes — STANDARD MOTOR PRODUCTS HP3945
HandypackConnector Shape: SquareIncludes Wheel Speed Sensor Wiring HarnessBlackIncludes ABS Wheel Speed Sensor Wire Harness
Fits:
Front
or:
Rear Right
or:
Rear Left
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STANDARD MOTOR PRODUCTS Popular Fits: 2.5L L4 S824
🇺🇸 US 🇨🇦 CA
Connector Shape: SquareHarness Length
Fitment notes — STANDARD MOTOR PRODUCTS S824
Connector Shape: SquareHarness LengthIncludes ABS Wheel Speed Sensor Wire HarnessIncludes Wheel Speed Sensor Wiring Harnessinches: 7Length (In): 1.25Wiring Harness Length (mm): 209.55Black
Fits:
Front
or:
Rear Right
or:
Rear Left
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ACDELCO Fits: 2.5L L4 PT2160
🇺🇸 US 🇨🇦 CA
GoldShape: Square
Fitment notes — ACDELCO PT2160
GoldShape: Square
Fits:
Front
or:
Rear Right
or:
Rear Left
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HOLSTEIN Fits: 2.5L L4 2HAR0035
🇺🇸 US 🇨🇦 CA
Includes ABS Wheel Speed Sensor Wire Harness
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WALKER PRODUCTS Fits: 2.5L L4 2701100
🇺🇸 US 🇨🇦 CA
Includes ABS Wheel Speed Sensor Wire Harness
Fitment notes — WALKER PRODUCTS 2701100
Includes ABS Wheel Speed Sensor Wire Harness
Front
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WELLS Fits: 2.5L L4 1P3308
🇺🇸 US 🇨🇦 CA
Includes Butt Connectors
Fitment notes — WELLS 1P3308
Includes Butt Connectors
Fits:
Rear
or:
Front
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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.

Accelerator Pedal Position Sensor Connector

Brand Part Number Markets Notes Buy
STANDARD MOTOR PRODUCTS Fits: 2.5L L4 S1048
🇺🇸 US 🇨🇦 CA
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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.

Air Intake / Charge Temperature Sensor Connector

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 2.5L L4 84677313
🇺🇸 US 🇨🇦 CA
Black
Fitment notes — GM GENUINE 84677313
Black
Si Elec Code: B75CMultifunction Intake Air Sensor.75mm28-Way Femalewith Leads
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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.

Alternator / Generator Connector

Brand Part Number Markets Notes Buy
ACDELCO Fits: 2.5L L4 84941154
🇺🇸 US 🇨🇦 CA
Black
Fitment notes — ACDELCO 84941154
Black
Si Elec Code: G13Generator X12-Way Femalewith Leads
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GM GENUINE Fits: 2.5L L4 PT2971
🇺🇸 US 🇨🇦 CA
Gender: MaleTerminal Type: Blade
Fitment notes — GM GENUINE PT2971
Gender: MaleTerminal Type: BladeBlack
Si Elec Code: G13Generator X12-Way Femalewith Leads
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STANDARD MOTOR PRODUCTS Fits: 2.5L L4 S1477
🇺🇸 US 🇨🇦 CA
without Wiring Harness
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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.

Body Wiring Harness / Connector

Brand Part Number Markets Notes Buy
GM GENUINE Popular Fits: 2.5L L4 PT2550
🇺🇸 US 🇨🇦 CA
BlackShape: Round
Fitment notes — GM GENUINE PT2550
BlackShape: Round
Si Elec Code: T10GKeyless Entry AntennaRear Fascia2-Way Femalewith LeadsPhysically verify part matches original plug
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GM GENUINE Popular Fits: 2.5L L4 PT1401
🇺🇸 US 🇨🇦 CA
Black
Fitment notes — GM GENUINE PT1401
Black
Si Electrical Code: K83Park Brake Control Module16-Way Femalewith Leads
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ACDELCO Fits: 2.5L L4 PT2715
🇺🇸 US 🇨🇦 CA
GM Original Equipment
Fitment notes — ACDELCO PT2715
GM Original Equipment
SI Electric Code: E8SREAR COMPARTMENT COURTESY LAMPBLACK2-WAY FEMALEwith Leads
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GM GENUINE Fits: 2.5L L4 13587760
🇺🇸 US 🇨🇦 CA
Fits SI ELEC CODE: X500GRAY
Fitment notes — GM GENUINE 13587760
Fits:
SI ELEC CODE: X500GRAYDRIVER DOOR HARNESS TO BODY HARNESS41-WAY MALEwithout LEADS
or:
SI ELEC CODE: X600PASSENGER DOOR HARNESS TO BODY HARNESSGRAY41-WAY MALEwithout LEADS
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GM GENUINE Fits: 2.5L L4 PT2792
🇺🇸 US 🇨🇦 CA
Fits LeftSide Impact Sensor-Rear
Fitment notes — GM GENUINE PT2792
Fits:
LeftSide Impact Sensor-RearSi Elec Code:B63LRDK Gray2-Way Femalewith Leads
or:
RightSide Impact Sensor-RearSi Elec Code:B63RRDK Gray2-Way Femalewith Leads
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GM GENUINE Fits: 2.5L L4 PT2553
🇺🇸 US 🇨🇦 CA
Black
Fitment notes — GM GENUINE PT2553
Black
Fits:
Si Elec Code: K77Remote Control Door Lock Receiver X14-Way Femalewith Leadsor Si Elec Code: T10EKeyless Entry AntennaRear Compartment4-Way Femalewith Leads
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GM GENUINE Fits: 2.5L L4 PT2881
🇺🇸 US 🇨🇦 CA
BlackTerminal Type: Blade Pin
Fitment notes — GM GENUINE PT2881
BlackTerminal Type: Blade Pin
SpeakerSubwooferSi Elec Code: P19AC2-Way Femalewith Leads
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GM GENUINE Fits: 2.5L L4 85576725
🇺🇸 US 🇨🇦 CA
Black
Fitment notes — GM GENUINE 85576725
Black
Si Elec Code: T3Audio Amplifier X18-Way Femalewith Leads
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STANDARD MOTOR PRODUCTS Fits: 2.5L L4 S1243
🇺🇸 US 🇨🇦 CA
Connector Shape: RectangleGauge: 18-12 Gauge
Fitment notes — STANDARD MOTOR PRODUCTS S1243
Connector Shape: RectangleGauge: 18-12 GaugeLength (In): 1.125
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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.

Brake Pedal Connector

Brand Part Number Markets Notes Buy
STANDARD MOTOR PRODUCTS Fits: 2.5L L4 S2506
🇺🇸 US 🇨🇦 CA
Terminal Type: Blade
Fitment notes — STANDARD MOTOR PRODUCTS S2506
Terminal Type: Blade
Pedal Position Sensor Connector
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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.

Camshaft Position Sensor Connector

Brand Part Number Markets Notes Buy
WELLS Fits: 2.5L L4 1P2565
🇺🇸 US 🇨🇦 CA
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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.

Crankshaft Position Sensor Connector

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 2.5L L4 PT2106
🇺🇸 US 🇨🇦 CA
Black
Fitment notes — GM GENUINE PT2106
Black
Si Elec Code: B26Crankshaft Position Sensor3-Way Femalewith Leads
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HOLSTEIN Fits: 2.5L L4 2HAR0060
🇺🇸 US 🇨🇦 CA
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STANDARD MOTOR PRODUCTS Fits: 2.5L L4 S2316
🇺🇸 US 🇨🇦 CA
Connector Shape: OvalNumber of Splice Connectors Included: 3
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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.

EGR Valve Connector

Brand Part Number Markets Notes Buy
SKP Fits: 2.5L L4 SKS575
🇺🇸 US 🇨🇦 CA
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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.

Engine Wiring Harness / Connector

Brand Part Number Markets Notes Buy
GM GENUINE Popular Fits: 2.5L L4 PT2971
🇺🇸 US 🇨🇦 CA
Gender: MaleTerminal Type: Blade
Fitment notes — GM GENUINE PT2971
Gender: MaleTerminal Type: BladeBlack
Starter Motor X1Si Elec Code: M642-Way Femalewith Leads
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GM GENUINE Popular Fits: 2.5L L4 PT2183
🇺🇸 US 🇨🇦 CA
Black
Fitment notes — GM GENUINE PT2183
Black
Si Elec Code: B35Engine Oil Level Switch2-Way Femalewith Leads2.8 Series
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ACDELCO Fits: 2.5L L4 84941154
🇺🇸 US 🇨🇦 CA
Black
Fitment notes — ACDELCO 84941154
Black
Starter Motor X1Si Elec Code: M642-Way Femalewith Leads
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GM GENUINE Fits: 2.5L L4 13576549
🇺🇸 US 🇨🇦 CA
Black
Fitment notes — GM GENUINE 13576549
Black
Si Electric Code: X115Engine Harness to Body Harness40-Way Femalewithout Leads
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GM GENUINE Fits: 2.5L L4 13577534
🇺🇸 US 🇨🇦 CA
Black
Fitment notes — GM GENUINE 13577534
Black
Fits:
Si Elec Code: G18High Pressure Fuel Pump2-Way Femalewith Leadsor Si Elec Code: Q44Engine Oil Pressure Control Solenoid Valve2-Way Femalewith Leads
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GM GENUINE Fits: 2.5L L4 PT2768
🇺🇸 US 🇨🇦 CA
Black
Fitment notes — GM GENUINE PT2768
Black
Si Elec Code: K43Power Steering Control Module X25-Way Femalewith Leads
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GM GENUINE Fits: 2.5L L4 PT2044
🇺🇸 US 🇨🇦 CA
Black
Fitment notes — GM GENUINE PT2044
Black
Service Information Electrical Code: Q12Evaporative Emission Purge Solenoid Valve2-Way Femalewith LeadsSealed2.8 BDK Series
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GM GENUINE Fits: 2.5L L4 86778122
🇺🇸 US 🇨🇦 CA
BlackTerminal Type: Pin
Fitment notes — GM GENUINE 86778122
BlackTerminal Type: Pin
Fits:
Si Elec Code: Q6ACamshaft Position Actuator Solenoid ValveBank 1 Exhaust2-Way Femalewith Leadsor Si Elec Code: Q6BCamshaft Position Actuator Solenoid ValveBank 1 Intake2-Way Femalewith Leadsor Si Elec Code: Q6CCamshaft Position Actuator Solenoid ValveBank 2 Exhaust2-Way Femalewith Leadsor Si Elec Code: Q6DCamshaft Position Actuator Solenoid ValveBank 2 Intake2-Way Femalewith Leads
View on
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GM GENUINE Fits: 2.5L L4 19352907
🇺🇸 US 🇨🇦 CA
Black
Fitment notes — GM GENUINE 19352907
Black
SI ELEC CODE: X160ENGINE HARNESS TO FUEL RAIL HARNESS12-WAY FEMALEwithout LEADS
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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.

Fuel Injection Pressure Sensor Connector

Brand Part Number Markets Notes Buy
STANDARD MOTOR PRODUCTS Fits: 2.5L L4 S1713
🇺🇸 US 🇨🇦 CA
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This table covers the harness connectors at the Fuel Injection 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.

Fuel Injector Connector

Brand Part Number Markets Notes Buy
GB REMANUFACTURING Fits: 2.5L L4 5191
🇺🇸 US 🇨🇦 CA
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SKP Fits: 2.5L L4 SKS824
🇺🇸 US 🇨🇦 CA
Includes ABS Wheel Speed Sensor Wire Harness
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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.

Fuel Pump Connector

Brand Part Number Markets Notes Buy
STANDARD MOTOR PRODUCTS Fits: 2.5L L4 HP4325
🇺🇸 US 🇨🇦 CA
HandypackConnector Shape: Rectangle
Fitment notes — STANDARD MOTOR PRODUCTS HP4325
HandypackConnector Shape: RectangleHarness Length16-1/2 "Terminal Type: Blade
Color Code Black and Orangewith 2 Terminal(s)
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STANDARD MOTOR PRODUCTS Fits: 2.5L L4 S1024
🇺🇸 US 🇨🇦 CA
Connector Shape: RectangleHarness Length
Fitment notes — STANDARD MOTOR PRODUCTS S1024
Connector Shape: RectangleHarness Length16-1/2 "Terminal Type: Blade
Color Code Black and Orangewith 2 Terminal(s)
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STANDARD MOTOR PRODUCTS Fits: 2.5L L4 S2810
🇺🇸 US 🇨🇦 CA
Graywith 2 Terminal(s)
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This table covers the harness connectors at the Fuel 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.

Fuel Sending Unit Connector

Brand Part Number Markets Notes Buy
STANDARD MOTOR PRODUCTS Fits: 2.5L L4 S2904
🇺🇸 US 🇨🇦 CA
with 4 Blade Terminals
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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.

Fuel Tank Connector

Brand Part Number Markets Notes Buy
GM GENUINE Popular Fits: 2.5L L4 PT2612
🇺🇸 US 🇨🇦 CA
Black
Fitment notes — GM GENUINE PT2612
Black
2-Way Femalewith Leads
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GM GENUINE Popular Fits: 2.5L L4 PT1401
🇺🇸 US 🇨🇦 CA
Black
Fitment notes — GM GENUINE PT1401
Black
Black16-Way Femalewith Leads
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GM GENUINE Fits: 2.5L L4 PT2648
🇺🇸 US 🇨🇦 CA
GRAY3-WAY FEMALE
Fitment notes — GM GENUINE PT2648
GRAY3-WAY FEMALEwith Leads
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GM GENUINE Fits: 2.5L L4 PT2391
🇺🇸 US 🇨🇦 CA
Black
Fitment notes — GM GENUINE PT2391
Black
Black3-Way FemaleGT150 Serieswith Leads
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GM GENUINE Fits: 2.5L L4 PT2877
🇺🇸 US 🇨🇦 CA
Natural4-Way Female
Fitment notes — GM GENUINE PT2877
Natural4-Way Femalewith Leads
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STANDARD MOTOR PRODUCTS Fits: 2.5L L4 S1243
🇺🇸 US 🇨🇦 CA
Connector Shape: RectangleGauge: 18-12 Gauge
Fitment notes — STANDARD MOTOR PRODUCTS S1243
Connector Shape: RectangleGauge: 18-12 GaugeLength (In): 1.125
View on
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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.

Fuel Tank Pressure Sensor Connector

Brand Part Number Markets Notes Buy
STANDARD MOTOR PRODUCTS Fits: 2.5L L4 S1445
🇺🇸 US 🇨🇦 CA
Wiring Harness Length (In): 17Wiring Harness Length (mm): 431.8
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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.

Grille Air Intake / Shutter Actuator Connector

Brand Part Number Markets Notes Buy
STANDARD MOTOR PRODUCTS Fits: 2.5L L4 S2511
🇺🇸 US 🇨🇦 CA
Connector Shape: Oval
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This table covers the harness connectors at the Grille Air Intake / Shutter 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.

Headlamp Wiring Harness / Connector

Brand Part Number Markets Notes Buy
GM GENUINE Popular Fits: 2.5L L4 PT2612
🇺🇸 US 🇨🇦 CA
Black
Fitment notes — GM GENUINE PT2612
Black
Si Elec Code: P13Horn Assembly2-Way Femalewith Leads
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GM GENUINE Popular Fits: 2.5L L4 PT1694
🇺🇸 US 🇨🇦 CA
Black
Fitment notes — GM GENUINE PT1694
Black
Si Electrical Code: X117Engine Cooling Fan Harness to Forward Lamp Harness5-Way Malewith Leads
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GM GENUINE Fits: 2.5L L4 PT2792
🇺🇸 US 🇨🇦 CA
Fits LeftSi Elec Code:B59L
Fitment notes — GM GENUINE PT2792
Fits:
LeftSi Elec Code:B59LFront Impact SensorDK Gray2-Way Femalewith Leads
or:
RightSi Elec Code:B59RFront Impact SensorDK Gray2-Way Femalewith Leads
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GM GENUINE Fits: 2.5L L4 PT2625
🇺🇸 US 🇨🇦 CA
Black
Fitment notes — GM GENUINE PT2625
Black
Windshield Washer Fluid Level SwitchSi Elec Code: B118B2-Way Femalewith Leads
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GM GENUINE Fits: 2.5L L4 13576549
🇺🇸 US 🇨🇦 CA
Black
Fitment notes — GM GENUINE 13576549
Black
Si Electric Code: X150Forward Lamp Harness to Body Harness40-Way Femalewithout Leads
View on
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GM GENUINE Fits: 2.5L L4 PT2888
🇺🇸 US 🇨🇦 CA
Windshield Wiper MotorSi Elec Code: M75
Fitment notes — GM GENUINE PT2888
Windshield Wiper MotorSi Elec Code: M75Gray5-Way Femalewith Leads
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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.

Headliner Connector

Brand Part Number Markets Notes Buy
GM GENUINE Popular Fits: 2.5L L4 PT2726
🇺🇸 US 🇨🇦 CA
Black
Fitment notes — GM GENUINE PT2726
Black
Fits:
LeftSunshade Mirror LampSi Elec Code: E31L2-Way Malewith LeadsSquare
or:
RightSunshade Mirror LampSi Elec Code: E31R2-Way Malewith LeadsSquare
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ACDELCO Fits: 2.5L L4 PT2715
🇺🇸 US 🇨🇦 CA
GM Original Equipment
Fitment notes — ACDELCO PT2715
GM Original Equipment
Fits:
SI Electric Code: E1LBLACKACCENT LAMP - OVERHEAD CONSOLE2-WAY FEMALEwith Leadsor SI Electric Code: E38FLOOD LAMP - CENTER CONSOLEBLACK2-WAY FEMALEwith Leads
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GM GENUINE Fits: 2.5L L4 PT3724
🇺🇸 US 🇨🇦 CA
Black
Fitment notes — GM GENUINE PT3724
Black
Si Elec Code: P14Passenger Air Bag Disabled Indicator6-Way Femalewith Leads
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GM GENUINE Fits: 2.5L L4 PT3735
🇺🇸 US 🇨🇦 CA
Black
Fitment notes — GM GENUINE PT3735
Black
RearSi Elec Code: E37RDome/Reading Lamps.75mm26-Way Femalewith Leads
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GM GENUINE Fits: 2.5L L4 PT3025
🇺🇸 US 🇨🇦 CA
Black
Fitment notes — GM GENUINE PT3025
Black
Si Elec Code: S25Garage Door Opener4-Way Femalewith Leads
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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.

Horn Connector

Brand Part Number Markets Notes Buy
DORMAN Fits: 2.5L L4 645215
🇺🇸 US 🇨🇦 CA
2 Cavity Female
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ROSTRA Fits: 2.5L L4 610059
🇺🇸 US 🇨🇦 CA
Terminal Gender: Female
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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.

Ignition Coil Connector

Brand Part Number Markets Notes Buy
STANDARD MOTOR PRODUCTS Fits: 2.5L L4 S2927
🇺🇸 US 🇨🇦 CA
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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.

Ignition Relay Connector

Brand Part Number Markets Notes Buy
STANDARD MOTOR PRODUCTS Fits: 2.5L L4 S706
🇺🇸 US 🇨🇦 CA
Connector Shape: PolygonLength (In): 0.875
Fitment notes — STANDARD MOTOR PRODUCTS S706
Connector Shape: PolygonLength (In): 0.875black
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This table covers the harness connectors at the Ignition 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.

Ignition Starter Switch Connector

Brand Part Number Markets Notes Buy
STANDARD MOTOR PRODUCTS Fits: 2.5L L4 S2425
🇺🇸 US 🇨🇦 CA
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This table covers the harness connectors at the Ignition Starter 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.

Instrument Panel Connector

Brand Part Number Markets Notes Buy
GM GENUINE Popular Fits: 2.5L L4 PT2550
🇺🇸 US 🇨🇦 CA
BlackShape: Round
Fitment notes — GM GENUINE PT2550
BlackShape: Round
Si Elec Code: T10JKeyless Entry AntennaCenter Console Front2-Way Femalewith LeadsPhysically verify part matches original plug
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GM GENUINE Popular Fits: 2.5L L4 PT2195
🇺🇸 US 🇨🇦 CA
Black
Fitment notes — GM GENUINE PT2195
Black
Steering Column Tilt and Telescope SwitchSi Elec Code: S717-Way Femalewith Leads
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GM GENUINE Fits: 2.5L L4 PT2506
🇺🇸 US 🇨🇦 CA
Fits LeftSpeaker
Fitment notes — GM GENUINE PT2506
Fits:
LeftSpeakerFront TweeterSi Elec Code: P19HGreen2-Way Femalewith Leads
or:
RightSpeakerFront TweeterSi Elec Code: P19VGreen2-Way Femalewith Leads
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GM GENUINE Fits: 2.5L L4 PT2630
🇺🇸 US 🇨🇦 CA
YellowSteering Wheel Air Bag Coil X3
Fitment notes — GM GENUINE PT2630
YellowSteering Wheel Air Bag Coil X3Si Elec Code: X854-Way Femalewith Leads
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GM GENUINE Fits: 2.5L L4 PT146
🇺🇸 US 🇨🇦 CA
Black
Fitment notes — GM GENUINE PT146
Black
Fits:
LeftSi Elec Code: E8JInstrument Panel Courtesy Lamp2-Way Femalewith LeadsSquare
or:
RightSi Elec Code: E8KInstrument Panel Courtesy Lamp2-Way Femalewith LeadsSquare
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GM GENUINE Fits: 2.5L L4 PT2557
🇺🇸 US 🇨🇦 CA
Black
Fitment notes — GM GENUINE PT2557
Black
Fits:
Windshield Wiper/Washer SwitchSi Elec Code: S828-Way Femalewith Leadsor Si Electrical Code: S91Park Brake Control Switch8-Way Femalewith Leads
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GM GENUINE Fits: 2.5L L4 PT2631
🇺🇸 US 🇨🇦 CA
Black
Fitment notes — GM GENUINE PT2631
Black
Si Elec Code: B107Accelerator Pedal Position Sensor6-Way Femalewith Leads
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GM GENUINE Fits: 2.5L L4 PT2496
🇺🇸 US 🇨🇦 CA
Black
Fitment notes — GM GENUINE PT2496
Black
Steering Wheel Angle SensorSi Elec Code: B996-Way Femalewith Leads
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GM GENUINE Fits: 2.5L L4 PT2996
🇺🇸 US 🇨🇦 CA
Black
Fitment notes — GM GENUINE PT2996
Black
Si Elec Code: M8Blower Motor6-Way Femalewith Leads
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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.

Knock / Detonation Sensor Connector

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 2.5L L4 19301207
🇺🇸 US 🇨🇦 CA
Black
Fitment notes — GM GENUINE 19301207
Black
Fits:
Si Elec Code: B68BKnock Sensor 22-Way Femalewith Leadsor Si Elec Code: B68AKnock Sensor 12-Way Femalewith Leads
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STANDARD MOTOR PRODUCTS Fits: 2.5L L4 S934
🇺🇸 US 🇨🇦 CA
Contact Terminal Material: Metal
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UNITED MOTOR PRODUCTS Fits: 2.5L L4 CON191
🇺🇸 US 🇨🇦 CA
Terminal Gender: Female
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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.

Manifold Pressure (MAP) Sensor Connector

Brand Part Number Markets Notes Buy
BWD/NIEHOFF Fits: 2.5L L4 PT944
🇺🇸 US 🇨🇦 CA
Evaporator Emission Control ConnectorAt Fuel Tank Pressure Sensor
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STANDARD MOTOR PRODUCTS Fits: 2.5L L4 S1038
🇺🇸 US 🇨🇦 CA
Connector Shape: Rectangle
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UNITED MOTOR PRODUCTS Fits: 2.5L L4 CON7
🇺🇸 US 🇨🇦 CA
Terminal Gender: Female
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WELLS Fits: 2.5L L4 1P2218
🇺🇸 US 🇨🇦 CA
View on
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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.

Mass Air Flow (MAF) Sensor Connector

Brand Part Number Markets Notes Buy
STANDARD MOTOR PRODUCTS Fits: 2.5L L4 S2507
🇺🇸 US 🇨🇦 CA
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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.

Oil Level Sensor Connector

Brand Part Number Markets Notes Buy
STANDARD MOTOR PRODUCTS Fits: 2.5L L4 HP4325
🇺🇸 US 🇨🇦 CA
HandypackConnector Shape: Rectangle
Fitment notes — STANDARD MOTOR PRODUCTS HP4325
HandypackConnector Shape: RectangleHarness Length16-1/2 "Terminal Type: Blade
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STANDARD MOTOR PRODUCTS Fits: 2.5L L4 S1024
🇺🇸 US 🇨🇦 CA
Connector Shape: RectangleHarness Length
Fitment notes — STANDARD MOTOR PRODUCTS S1024
Connector Shape: RectangleHarness Length16-1/2 "Terminal Type: Blade
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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.

Oil Pressure Sender / Switch Connector

Brand Part Number Markets Notes Buy
STANDARD MOTOR PRODUCTS Fits: 2.5L L4 S2278
🇺🇸 US 🇨🇦 CA
BlackConnector Shape: Oval
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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.

Oxygen (O2) Sensor Connector

Brand Part Number Markets Notes Buy
STANDARD MOTOR PRODUCTS Popular Fits: 2.5L L4 S2894
🇺🇸 US 🇨🇦 CA
RearColor Code Black and Purple
Fitment notes — STANDARD MOTOR PRODUCTS S2894
RearColor Code Black and Purplewith 4 Female Terminals
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GM GENUINE Fits: 2.5L L4 PT2923
🇺🇸 US 🇨🇦 CA
Crimping Tool Included: NoLength: 12 in
Fitment notes — GM GENUINE PT2923
Crimping Tool Included: NoLength: 12 inBlack
Si Elec Code: B52AHeated Oxygen Sensor 14-Way Femalewith Leads
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GM GENUINE Fits: 2.5L L4 PT2922
🇺🇸 US 🇨🇦 CA
Si Elec Code: B52BHeated Oxygen Sensor 2
Fitment notes — GM GENUINE PT2922
Si Elec Code: B52BHeated Oxygen Sensor 2Gray4-Way Femalewith Leads
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GM GENUINE Fits: 2.5L L4 PT919
🇺🇸 US 🇨🇦 CA
Black
Fitment notes — GM GENUINE PT919
Black
Fits:
Si Elec Code: B52CHeated Oxygen SensorBank 1 Sensor 14-Way Malewith Leadsor Si Elec Code: B52DHeated Oxygen SensorBank 1 Sensor 24-Way Malewith Leadsor Si Elec Code: B52EHeated Oxygen SensorBank 2 Sensor 14-Way Malewith Leadsor Si Elec Code: B52FHeated Oxygen SensorBank 2 Sensor 24-Way Malewith Leads
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STANDARD MOTOR PRODUCTS Fits: 2.5L L4 S3097
🇺🇸 US 🇨🇦 CA
RearGray
Fitment notes — STANDARD MOTOR PRODUCTS S3097
RearGraywith 4 Female Terminals
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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.

Park Assist (PAS) Camera Connector

Brand Part Number Markets Notes Buy
METRA Fits: 2.5L L4 AXACGM1
🇺🇸 US 🇨🇦 CA
Camera Interface
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METRA Fits: 2.5L L4 BACKUPCAM3
🇺🇸 US 🇨🇦 CA
Backup Camera Retention Harness
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This table covers the harness connectors at the Park Assist (PAS) Camera. 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.

Parking Aid Sensor Connector

Brand Part Number Markets Notes Buy
STANDARD MOTOR PRODUCTS Fits: 2.5L L4 S2269
🇺🇸 US 🇨🇦 CA
Connector Shape: RectangleNumber of Splice Connectors Included: 3
Fitment notes — STANDARD MOTOR PRODUCTS S2269
Connector Shape: RectangleNumber of Splice Connectors Included: 3Rear
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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.

Power Window Switch Connector

Brand Part Number Markets Notes Buy
STANDARD MOTOR PRODUCTS Fits: 2.5L L4 S1426
🇺🇸 US 🇨🇦 CA
Fits Rear
Fitment notes — STANDARD MOTOR PRODUCTS S1426
Fits:
Rear
or:
Front Right
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STANDARD MOTOR PRODUCTS Fits: 2.5L L4 S1481
🇺🇸 US 🇨🇦 CA
Front Leftwith One Touch Window Open/Close
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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.

Radiator Fan Motor Connector

Brand Part Number Markets Notes Buy
STANDARD MOTOR PRODUCTS Fits: 2.5L L4 S1288
🇺🇸 US 🇨🇦 CA
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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.

Radiator Fan Relay Connector

Brand Part Number Markets Notes Buy
STANDARD MOTOR PRODUCTS Fits: 2.5L L4 S706
🇺🇸 US 🇨🇦 CA
Connector Shape: PolygonLength (In): 0.875
Fitment notes — STANDARD MOTOR PRODUCTS S706
Connector Shape: PolygonLength (In): 0.875black
Auxiliary
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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.

Radio Connector

Brand Part Number Markets Notes Buy
METRA Fits: 2.5L L4 AXBUCHGM3
🇺🇸 US 🇨🇦 CA
Rear View Camera Harness
Fitment notes — METRA AXBUCHGM3
Rear View Camera Harness
The Vehicle Must Be Running For The Factory Camera To Power On
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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.

Speaker Amplifier Connector

Brand Part Number Markets Notes Buy
WELLS Fits: 2.5L L4 1P3938
🇺🇸 US 🇨🇦 CA
with 8 Terminals
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This table covers the harness connectors at the Speaker Amplifier. 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.

Temperature Sender / Sensor Connector

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 2.5L L4 PT2550
🇺🇸 US 🇨🇦 CA
BlackShape: Round
Fitment notes — GM GENUINE PT2550
BlackShape: Round
Si Elec Code: B34Engine Coolant Temperature Sensor2-Way Femalewith LeadsPhysically verify part matches original plug
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HOLSTEIN Fits: 2.5L L4 2HAR0036
🇺🇸 US 🇨🇦 CA
Includes ABS Wheel Speed Sensor Wire Harness
Fitment notes — HOLSTEIN 2HAR0036
Includes ABS Wheel Speed Sensor Wire Harness
Located on water outlet
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STANDARD MOTOR PRODUCTS Fits: 2.5L L4 S1686
🇺🇸 US 🇨🇦 CA
Connector Shape: OvalBlack
Fitment notes — STANDARD MOTOR PRODUCTS S1686
Connector Shape: OvalBlackIncludes Wheel Speed Sensor Wiring Harness, ABS Wheel Speed Sensor Wire Harness
On Water Outlet
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WELLS Fits: 2.5L L4 1P3395
🇺🇸 US 🇨🇦 CA
View on
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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.

Throttle Control Actuator Connector

Brand Part Number Markets Notes Buy
STANDARD MOTOR PRODUCTS Fits: 2.5L L4 S2409
🇺🇸 US 🇨🇦 CA
Gender: MaleHarness Length
Fitment notes — STANDARD MOTOR PRODUCTS S2409
Gender: MaleHarness Lengthinches: 12.5
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This table covers the harness connectors at the Throttle Control 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.

Trailer Connector

Brand Part Number Markets Notes Buy
CURT Fits: 2.5L L4 56188
🇺🇸 US 🇨🇦 CA
Custom Wiring Harness4-Way Flat
Fitment notes — CURT 56188
Custom Wiring Harness4-Way Flat
2-Wire System
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TEKONSHA Fits: 2.5L L4 118590
🇺🇸 US 🇨🇦 CA
T-One Connector Assemblywith Upgraded Circuit Protected Modu Lite Module
Fitment notes — TEKONSHA 118590
T-One Connector Assemblywith Upgraded Circuit Protected Modu Lite Module
Drilling Required
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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.

Vapor Canister Connector

Brand Part Number Markets Notes Buy
ACDELCO Fits: 2.5L L4 PT2160
🇺🇸 US 🇨🇦 CA
GoldShape: Square
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HOLSTEIN Fits: 2.5L L4 2HAR0035
🇺🇸 US 🇨🇦 CA
Includes ABS Wheel Speed Sensor Wire Harness
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STANDARD MOTOR PRODUCTS Fits: 2.5L L4 HP3945
🇺🇸 US 🇨🇦 CA
HandypackConnector Shape: Square
Fitment notes — STANDARD MOTOR PRODUCTS HP3945
HandypackConnector Shape: SquareIncludes Wheel Speed Sensor Wiring HarnessBlackIncludes ABS Wheel Speed Sensor Wire Harness
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STANDARD MOTOR PRODUCTS Fits: 2.5L L4 S824
🇺🇸 US 🇨🇦 CA
Connector Shape: SquareHarness Length
Fitment notes — STANDARD MOTOR PRODUCTS S824
Connector Shape: SquareHarness LengthIncludes ABS Wheel Speed Sensor Wire HarnessIncludes Wheel Speed Sensor Wiring Harnessinches: 7Length (In): 1.25Wiring Harness Length (mm): 209.55Black
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This table covers the harness connectors at the Vapor Canister. 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.

Vapor Canister Purge Valve / Solenoid Connector

Brand Part Number Markets Notes Buy
STANDARD MOTOR PRODUCTS Fits: 2.5L L4 S2860
🇺🇸 US 🇨🇦 CA
Connector Shape: OvalGauge: 16 Gauge
Fitment notes — STANDARD MOTOR PRODUCTS S2860
Connector Shape: OvalGauge: 16 GaugeHarness LengthInches: 13Terminal Type: Bladeblack
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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.

Vapor Canister Vent Valve / Solenoid Connector

Brand Part Number Markets Notes Buy
ACDELCO Fits: 2.5L L4 PT2160
🇺🇸 US 🇨🇦 CA
GoldShape: Square
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HOLSTEIN Fits: 2.5L L4 2HAR0035
🇺🇸 US 🇨🇦 CA
Includes ABS Wheel Speed Sensor Wire Harness
View on
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STANDARD MOTOR PRODUCTS Fits: 2.5L L4 HP3945
🇺🇸 US 🇨🇦 CA
HandypackConnector Shape: Square
Fitment notes — STANDARD MOTOR PRODUCTS HP3945
HandypackConnector Shape: SquareIncludes Wheel Speed Sensor Wiring HarnessBlackIncludes ABS Wheel Speed Sensor Wire Harness
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STANDARD MOTOR PRODUCTS Fits: 2.5L L4 S824
🇺🇸 US 🇨🇦 CA
Connector Shape: SquareHarness Length
Fitment notes — STANDARD MOTOR PRODUCTS S824
Connector Shape: SquareHarness LengthIncludes ABS Wheel Speed Sensor Wire HarnessIncludes Wheel Speed Sensor Wiring Harnessinches: 7Length (In): 1.25Wiring Harness Length (mm): 209.55Black
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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.

Variable Power Steering Solenoid Connector

Brand Part Number Markets Notes Buy
WELLS Fits: 2.5L L4 1P3846
🇺🇸 US 🇨🇦 CA
with 5 Terminals
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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.

Variable Valve Timing (VVT) Solenoid Connector

Brand Part Number Markets Notes Buy
STANDARD MOTOR PRODUCTS Fits: 2.5L L4 S2860
🇺🇸 US 🇨🇦 CA
Connector Shape: OvalGauge: 16 Gauge
Fitment notes — STANDARD MOTOR PRODUCTS S2860
Connector Shape: OvalGauge: 16 GaugeHarness LengthInches: 13Terminal Type: Bladeblack
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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.

Washer Fluid Level Sensor Connector

Brand Part Number Markets Notes Buy
STANDARD MOTOR PRODUCTS Fits: 2.5L L4 HP4720
🇺🇸 US 🇨🇦 CA
HandypackConnector Shape: Oval
Fitment notes — STANDARD MOTOR PRODUCTS HP4720
HandypackConnector Shape: OvalIncludes ABS Wheel Speed Sensor Wire HarnessIncludes Backing Plate and SensorHarness Lengthinches: 10.25Length (In): 1Terminal Type: BladeWiring Harness Length (mm): 304.8Black
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STANDARD MOTOR PRODUCTS Fits: 2.5L L4 S575
🇺🇸 US 🇨🇦 CA
Connector Shape: OvalHarness Length
Fitment notes — STANDARD MOTOR PRODUCTS S575
Connector Shape: OvalHarness Lengthincludes ABS Wheel Speed Sensor Wire Harness, Backing Plate and Sensorinches: 10.25Length (In): 1Number of Splice Connectors Included: 0Terminal Gender: FemaleTerminal Type: BladeWiring Harness Length (mm): 304.8Black
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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.

Washer Pump Connector

Brand Part Number Markets Notes Buy
STANDARD MOTOR PRODUCTS Fits: 2.5L L4 S2279
🇺🇸 US 🇨🇦 CA
Front
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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.

Window Motor Connector

Brand Part Number Markets Notes Buy
STANDARD MOTOR PRODUCTS Fits: 2.5L L4 S2052
🇺🇸 US 🇨🇦 CA
Connector Shape: OvalGauge: 18-14 Gauge
Fitment notes — STANDARD MOTOR PRODUCTS S2052
Connector Shape: OvalGauge: 18-14 GaugeHarness LengthCM: 50Inches: 20
Fits:
Rear
or:
Front Right
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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.

Wire Terminal

Brand Part Number Markets Notes Buy
GM GENUINE Popular Fits: 2.5L L4 13582308
🇺🇸 US 🇨🇦 CA
Multi-PurposeWire Gauge Measurement: 1.00 GU
Fitment notes — GM GENUINE 13582308
Multi-PurposeWire Gauge Measurement: 1.00 GUWiring Harness Length (In): 17.72 In
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GM GENUINE Popular Fits: 2.5L L4 84757974
🇺🇸 US 🇨🇦 CA
Multi-PurposeColor: White
Fitment notes — GM GENUINE 84757974
Multi-PurposeColor: WhiteTerminal Gender: FemaleWater Resistant: NoWire Gauge Measurement: 14 GUWire Length (In): 17.72 In
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GM GENUINE Fits: 2.5L L4 19351723
🇺🇸 US 🇨🇦 CA
Multi-PurposeWire Gauge Measurement: 2.00 GU
Fitment notes — GM GENUINE 19351723
Multi-PurposeWire Gauge Measurement: 2.00 GUWiring Harness Length (In): 17.72 In
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GM GENUINE Fits: 2.5L L4 13575812
🇺🇸 US 🇨🇦 CA
Multi-PurposeWire Gauge Measurement: 0.80 GU
Fitment notes — GM GENUINE 13575812
Multi-PurposeWire Gauge Measurement: 0.80 GU
0.8MM2
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GM GENUINE Fits: 2.5L L4 13576369
🇺🇸 US 🇨🇦 CA
Multi-PurposeWire Gauge Measurement: 0.50 GU
Fitment notes — GM GENUINE 13576369
Multi-PurposeWire Gauge Measurement: 0.50 GU
0.5MM2
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GM GENUINE Fits: 2.5L L4 13576377
🇺🇸 US 🇨🇦 CA
Multi-PurposeWire Gauge Measurement: 6.00 GU
Fitment notes — GM GENUINE 13576377
Multi-PurposeWire Gauge Measurement: 6.00 GU
3.0MM2
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GM GENUINE Fits: 2.5L L4 13575400
🇺🇸 US 🇨🇦 CA
Multi-PurposeWire Gauge Measurement: 1.25 GU
Fitment notes — GM GENUINE 13575400
Multi-PurposeWire Gauge Measurement: 1.25 GU
1.25MM2
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GM GENUINE Fits: 2.5L L4 19119395
🇺🇸 US 🇨🇦 CA
Multi-PurposeWire Gauge Measurement: 1.00 GU
Fitment notes — GM GENUINE 19119395
Multi-PurposeWire Gauge Measurement: 1.00 GU
1.0MM2
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GM GENUINE Fits: 2.5L L4 13578883
🇺🇸 US 🇨🇦 CA
Multi-PurposeWire Gauge Measurement: 0.80 GU
Fitment notes — GM GENUINE 13578883
Multi-PurposeWire Gauge Measurement: 0.80 GU
0.8MM2
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GM GENUINE Fits: 2.5L L4 13575392
🇺🇸 US 🇨🇦 CA
Multi-PurposeWire Gauge Measurement: 2.50 GU
Fitment notes — GM GENUINE 13575392
Multi-PurposeWire Gauge Measurement: 2.50 GU
2.5MM2
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This table covers the terminals crimped onto a harness lead.

Buying Electrical Connector Parts for a 2018 Chevrolet Impala

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: Wire Terminal and Body Wiring Harness / Connector .

Frequently Asked Questions

How many electrical connector parts fit the 2018 Chevrolet Impala?

Our catalog currently lists 135 electrical connector parts for the 2018 Chevrolet Impala across 51 subcategories and 16 brands, covering both the 2.5L L4 and the 3.6L V6. Each part is matched to the engine(s) it fits.

Do electrical connector parts differ between 2018 Chevrolet Impala 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 2018 Chevrolet Impala?

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 2018 Chevrolet Impala 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 2018 Chevrolet Impala?

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 2018 Chevrolet Impala

Electrical Connector Parts for Other Chevrolet Impala Years

Switch vehicle or jump to a subcategory

Manufacturer names, model designations and part numbers are used for identification and fitment reference only. AutoFactsDB is an independent catalog and is not affiliated with, endorsed by, or sponsored by any vehicle manufacturer displayed on this page.