This page lists 42 electrical connector parts for the 2007 Cadillac BLS, across 19 part types, covering the 2.0L L4 Turbocharged engine. Every part shows its brand, manufacturer part number and fitment notes.
On the 2007 Cadillac BLS, the connector system supplies the pigtails and connector bodies that terminate the vehicle harness at lamps, sensors and modules. 15 parts of the 42 listed are A/C Refrigerant Pressure Switch Connector (6 parts), Manifold Pressure (MAP) Sensor Connector (5 parts) and Ambient Air Temperature Sensor Connector (4 parts). The other 16 part types cover the remaining 27 parts.
Every part on this page is matched to the 2.0L L4 Turbocharged — the only engine offered in the 2007 Cadillac BLS.
The most listed brands for 2007 Cadillac BLS electrical connector parts are STANDARD MOTOR PRODUCTS (21 parts), UNITED MOTOR PRODUCTS (5 parts) and FOUR SEASONS (4 parts), plus 5 more brands.
3 parts on this 2007 Cadillac BLS page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including ACDELCO PT2293 (A/C Refrigerant Pressure Switch Connector) and UNITED MOTOR PRODUCTS CON175 (Manifold Pressure (MAP) Sensor Connector). Click any part number to see every vehicle that part fits.
A/C Condenser Fan Switch Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FOUR SEASONS | 37227 | 🇲🇽 MX | 2 Terminal Male90 Degree Locator | View on Amazon |
| STANDARD MOTOR PRODUCTS | S536 | 🇲🇽 MX | Connector Shape: RoundWeather Resistant: No | View on Amazon |
This table covers the harness connectors at the A/C Condenser Fan 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 A/C Condenser Fan Switch Connector parts for the 2007 Cadillac BLS come from 2 brands — FOUR SEASONS and STANDARD MOTOR PRODUCTS.
Part numbers include FOUR SEASONS 37227 and STANDARD MOTOR PRODUCTS S536.
A/C Refrigerant Pressure Switch Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Popular | PT2293 | 🇺🇸 US 🇨🇦 CA | Gold | View on Amazon |
| FOUR SEASONS Popular | 37227 | 🇲🇽 MX | 2 Terminal Male90 Degree Locator | View on Amazon |
| FOUR SEASONS | 37222 | 🇲🇽 MX | 120 Degree Locator2 Terminal Male | View on Amazon |
| FOUR SEASONS | 37237 | 🇲🇽 MX | 2 Terminal Malewith Oval Connector | View on Amazon |
| STANDARD MOTOR PRODUCTS | S538 | 🇲🇽 MX | Black | View on Amazon |
| STANDARD MOTOR PRODUCTS | S536 | 🇲🇽 MX | Connector Shape: RoundWeather Resistant: No | 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.
6 A/C Refrigerant Pressure Switch Connector parts for the 2007 Cadillac BLS come from 3 brands — FOUR SEASONS, STANDARD MOTOR PRODUCTS and ACDELCO. The "Popular" part is ACDELCO PT2293.
Listed part numbers: ACDELCO PT2293, FOUR SEASONS 37227 and FOUR SEASONS 37222, plus the other parts above.
AIR / Smog Pump Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | S706 | 🇲🇽 MX | Connector Shape: PolygonLength (In): 0.875 | 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.
This group shows a single part: STANDARD MOTOR PRODUCTS S706.
Air Injection Relay Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | S1536 | 🇲🇽 MX | Connector Shape: PolygonWire Gauge (GA): 8, 16 | 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.
One part is listed for the 2007 Cadillac BLS — STANDARD MOTOR PRODUCTS S1536.
Ambient Air Temperature Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO | PT2307 | 🇺🇸 US 🇨🇦 CA | GoldShape: Rectangle | View on Amazon |
| STANDARD MOTOR PRODUCTS | HP4720 | 🇲🇽 MX | HandypackConnector Shape: Oval | View on Amazon |
| STANDARD MOTOR PRODUCTS | S575 | 🇲🇽 MX | Connector Shape: OvalHarness Length | View on Amazon |
| WALKER PRODUCTS | 2701130 | 🇲🇽 MX | Terminal Gender: MaleWiring Harness Length: 180.00 mm | 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.
4 Ambient Air Temperature Sensor Connector parts are listed for the 2007 Cadillac BLS, from STANDARD MOTOR PRODUCTS, ACDELCO and WALKER PRODUCTS.
This group includes ACDELCO PT2307, STANDARD MOTOR PRODUCTS HP4720 and STANDARD MOTOR PRODUCTS S575 and the remaining parts above.
Blower Motor Control Module / Resistor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HOLSTEIN | 2HAR0049 | 🇲🇽 MX | 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.
This group shows a single part: HOLSTEIN 2HAR0049.
Computer Control Relay Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | S706 | 🇲🇽 MX | Connector Shape: PolygonLength (In): 0.875 | View on Amazon |
This table covers the harness connectors at the Computer Control 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: STANDARD MOTOR PRODUCTS S706.
Crankshaft Position Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SKP | SKS1024 | 🇲🇽 MX | Fits Black and Orang | View on Amazon |
| STANDARD MOTOR PRODUCTS | HP4325 | 🇲🇽 MX | HandypackConnector Shape: Rectangle | View on Amazon |
| STANDARD MOTOR PRODUCTS | S1024 | 🇲🇽 MX | Connector Shape: RectangleHarness Length | View on Amazon |
| WALKER PRODUCTS | 2701098 | 🇲🇽 MX | 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.
4 Crankshaft Position Sensor Connector parts are listed for the 2007 Cadillac BLS, from STANDARD MOTOR PRODUCTS, SKP and WALKER PRODUCTS.
Part numbers include SKP SKS1024, STANDARD MOTOR PRODUCTS HP4325 and STANDARD MOTOR PRODUCTS S1024, among others listed above.
Fuel Injection Relay Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | S706 | 🇲🇽 MX | Connector Shape: PolygonLength (In): 0.875 | View on Amazon |
This table covers the harness connectors at the Fuel 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.
One part is listed for the 2007 Cadillac BLS — STANDARD MOTOR PRODUCTS S706.
Fuel Injector Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| UNITED MOTOR PRODUCTS | CON3 | 🇲🇽 MX | 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.
One part is listed for the 2007 Cadillac BLS — UNITED MOTOR PRODUCTS CON3.
Fuel Pump / Circuit Opening Relay Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | S706 | 🇲🇽 MX | Connector Shape: PolygonLength (In): 0.875 | 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.
This group shows a single part: STANDARD MOTOR PRODUCTS S706.
Ignition Coil Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | S1461 | 🇲🇽 MX | View on Amazon | |
| UNITED MOTOR PRODUCTS | CON222 | 🇲🇽 MX | View on Amazon | |
| WELLS | 1P2657 | 🇲🇽 MX | 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.
3 Ignition Coil Connector parts are listed for the 2007 Cadillac BLS, from STANDARD MOTOR PRODUCTS, UNITED MOTOR PRODUCTS and WELLS.
Part numbers include STANDARD MOTOR PRODUCTS S1461, UNITED MOTOR PRODUCTS CON222 and WELLS 1P2657.
Ignition Relay Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | S1536 | 🇲🇽 MX | Connector Shape: PolygonWire Gauge (GA): 8, 16 | View on Amazon |
| UNITED MOTOR PRODUCTS | CON28 | 🇲🇽 MX | View on Amazon |
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.
2 Ignition Relay Connector parts are listed for the 2007 Cadillac BLS, from STANDARD MOTOR PRODUCTS and UNITED MOTOR PRODUCTS.
Listed part numbers: STANDARD MOTOR PRODUCTS S1536 and UNITED MOTOR PRODUCTS CON28.
Manifold Pressure (MAP) Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| UNITED MOTOR PRODUCTS Popular | CON175 | 🇲🇽 MX | Terminal Gender: FemaleTerminal Type: Pin | View on Amazon |
| HOLSTEIN | 2HAR0063 | 🇲🇽 MX | View on Amazon | |
| STANDARD MOTOR PRODUCTS | HP4210 | 🇲🇽 MX | Handypack | View on Amazon |
| STANDARD MOTOR PRODUCTS | S821 | 🇲🇽 MX | View on Amazon | |
| WALKER PRODUCTS | 2701122 | 🇲🇽 MX | 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.
5 Manifold Pressure (MAP) Sensor Connector parts are listed for the 2007 Cadillac BLS, from STANDARD MOTOR PRODUCTS, UNITED MOTOR PRODUCTS, HOLSTEIN and 1 other brand. UNITED MOTOR PRODUCTS CON175 carries the "Popular" badge.
This group includes UNITED MOTOR PRODUCTS CON175, HOLSTEIN 2HAR0063 and STANDARD MOTOR PRODUCTS HP4210 and the remaining parts above.
Oil Pressure Sender / Switch Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | S639 | 🇲🇽 MX | Whitewith 1 Female Terminals | 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.
This group shows a single part: STANDARD MOTOR PRODUCTS S639.
On-Board Diagnostic (OBD) Port Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS | 1P1474 | 🇲🇽 MX | 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.
One part is listed for the 2007 Cadillac BLS — WELLS 1P1474.
Relay Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | S706 | 🇲🇽 MX | Connector Shape: PolygonLength (In): 0.875 | View on Amazon |
This table covers the harness connectors at the 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: STANDARD MOTOR PRODUCTS S706.
Starter Motor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | S1536 | 🇲🇽 MX | Connector Shape: PolygonWire Gauge (GA): 8, 16 | View on Amazon |
| UNITED MOTOR PRODUCTS | CON28 | 🇲🇽 MX | Starter Motor Relay Connector | View on Amazon |
This table covers the harness connectors at the Starter 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 Starter Motor Connector parts are listed for the 2007 Cadillac BLS, from STANDARD MOTOR PRODUCTS and UNITED MOTOR PRODUCTS.
This group includes STANDARD MOTOR PRODUCTS S1536 and UNITED MOTOR PRODUCTS CON28.
Temperature Sender / Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SKP | SKS1024 | 🇲🇽 MX | Fits Black and Orang | View on Amazon |
| STANDARD MOTOR PRODUCTS | HP4325 | 🇲🇽 MX | HandypackConnector Shape: Rectangle | View on Amazon |
| STANDARD MOTOR PRODUCTS | S1024 | 🇲🇽 MX | Connector Shape: RectangleHarness Length | View on Amazon |
| WELLS | 1P3395 | 🇲🇽 MX | 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.
4 Temperature Sender / Sensor Connector parts are listed for the 2007 Cadillac BLS, from STANDARD MOTOR PRODUCTS, SKP and WELLS.
Listed part numbers: SKP SKS1024, STANDARD MOTOR PRODUCTS HP4325 and STANDARD MOTOR PRODUCTS S1024, plus the other parts above.
Buying Electrical Connector Parts for a 2007 Cadillac BLS
On this vehicle, the connector system supplies the pigtails and connector bodies that terminate the vehicle harness at lamps, sensors and modules.
- Confirm you have the 2.0L L4 Turbocharged engine — every part on this page is matched to it.
- 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: A/C Refrigerant Pressure Switch Connector and Manifold Pressure (MAP) Sensor Connector .
Frequently Asked Questions
How many electrical connector parts fit the 2007 Cadillac BLS?
Our catalog currently lists 42 electrical connector parts for the 2007 Cadillac BLS across 19 subcategories and 8 brands, covering the 2.0L L4 Turbocharged engine. Each part is matched to the engine(s) it fits.
What are the signs of electrical connector problems on a 2007 Cadillac BLS?
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 2007 Cadillac BLS 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 2007 Cadillac BLS?
Every part on this page is matched to the 2.0L L4 Turbocharged engine. 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 2007 Cadillac BLS
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