OE Quality
60-Day Returns

Four Seasons 70006 Engine Coolant Temperature Sending Unit Switch Connector
Overview of Four Seasons Harness Connector 70006
The Four Seasons Harness Connector 70006 is designed for reliable electrical connections in engine coolant temperature sending unit systems. This male harness connector is compatible with various Chevrolet and GMC models, ensuring precise fitment and secure connectivity.
- Brand: Four Seasons
- Brand Line: Harness Connector
- Part Number: 70006
- Type: Engine Coolant Temperature Sending Unit Switch Connector
- Gender: Male connector housing
- Terminal Quantity: 3 terminals
- Terminal Gender: Female terminals
- Connector Shape: Oval
- Style: Harness connector
Four Seasons Harness Connector Product Line
The Harness Connector product line by Four Seasons focuses on providing durable and precise electrical connectors for automotive cooling and electrical systems. The 70006 connector is part of this line, engineered to maintain secure and stable connections for engine coolant temperature sending units, which are critical for accurate temperature monitoring and engine performance.
Detailed Product Description
This Four Seasons Harness Connector 70006 features a male housing with three female terminals arranged in an oval shape, designed to fit specific Chevrolet and GMC vehicles. The connector ensures a stable electrical connection for the engine coolant temperature sending unit switch, which plays a vital role in monitoring engine temperature and regulating cooling system functions. Its harness style allows for straightforward integration into existing wiring harnesses, reducing installation complexity and improving system reliability.
Compatible Vehicles and Applications
- Chevrolet Avalanche 1500 and 2500
- Chevrolet Express 1500, 2500, and 3500
- Chevrolet G30 and P3500
- Chevrolet Suburban 1500 and 2500
- Chevrolet Silverado 1500, 1500 HD, 2500, 2500 HD, 3500, and their Classic variants
- Chevrolet Tahoe
- GMC Sierra 2500 HD, 2500 HD Classic, 3500, and 3500 Classic
- GMC Savana 1500, 2500, and 3500
- GMC Yukon, Yukon XL 1500, and Yukon XL 2500
Common Issues Addressed by This Connector
- Intermittent or faulty engine coolant temperature sensor readings
- Loose or corroded electrical connections causing sensor failure
- Wiring harness damage affecting temperature switch signals
- Connector wear leading to poor electrical contact
- Replacement of damaged or worn connectors in cooling system circuits
Installation Notes and Tips
- Ensure vehicle compatibility by verifying make and model before installation
- Disconnect the battery before replacing the connector to prevent electrical shorts
- Inspect wiring harness for damage and repair as needed prior to connector installation
- Use proper tools to avoid damaging terminals during installation
- Confirm secure fit and proper terminal engagement to maintain reliable sensor signals
Quality Assurance and Warranty
Four Seasons manufactures the Harness Connector 70006 to meet OEM specifications for fit and function. While specific warranty details are not provided here, Four Seasons products typically undergo rigorous quality control to ensure durability and performance in automotive electrical systems.
| Brand | Four Seasons |
| Part Number | 70006 |
| Position | Harness Connector |
| Connector Shape | Oval |
| Description | Harness Connectors |
| Gender | Male |
| Style | Harness Connector |
| Terminal Gender | Female |
| Terminal Quantity | 3 |
| Type | Connector |
This part fits 118 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2007 | Chevrolet | Silverado 2500 HD Classic | 8.1L | V8 | N/A | Harness Connector |
| 2007 | Chevrolet | Silverado 2500 HD Classic | 8.1L | V8 | N/A | 3 Term.; Black and Purple; Harness Connector |
| 2007 | Chevrolet | Silverado 3500 Classic | 8.1L | V8 | N/A | Harness Connector |
| 2007 | Chevrolet | Silverado 3500 Classic | 8.1L | V8 | N/A | 3 Term.; Black and Purple; Harness Connector |
| 2007 | GMC | Sierra 2500 HD Classic | 8.1L | V8 | N/A | Black and Purple; 3 Term. Female; Harness Connector |
| 2007 | GMC | Sierra 3500 Classic | 8.1L | V8 | N/A | Black and Purple; 3 Term. Female; Harness Connector |
| 2006 | Chevrolet | Avalanche 1500 | N/A | Black and Purple; 3 Term. Female; Harness Connector | ||
| 2006 | Chevrolet | Avalanche 2500 | N/A | Black and Purple; 3 Term. Female; Harness Connector | ||
| 2006 | Chevrolet | Silverado 2500 HD | 8.1L | V8 | N/A | 3 Term.; Black and Purple; Harness Connector |
| 2006 | Chevrolet | Silverado 3500 | 8.1L | V8 | N/A | 3 Term.; Black and Purple; Harness Connector |
| 2006 | Chevrolet | Suburban 1500 | N/A | Black and Purple; 3 Term. Female; Harness Connector | ||
| 2006 | Chevrolet | Suburban 2500 | 6.0L | V8 | N/A | Black and Purple; 3 Term. Female; Harness Connector |
| 2006 | Chevrolet | Suburban 2500 | 8.1L | V8 | N/A | Black and Purple; 3 Term. Female; Harness Connector |
| 2006 | Chevrolet | Tahoe | N/A | Black and Purple; 3 Term. Female; Harness Connector | ||
| 2006 | GMC | Sierra 2500 HD | 8.1L | V8 | N/A | Black and Purple; 3 Term. Female; Harness Connector |
| 2006 | GMC | Sierra 3500 | 8.1L | V8 | N/A | Black and Purple; 3 Term. Female; Harness Connector |
| 2006 | GMC | Yukon | N/A | Black and Purple; 3 Term. Female; Harness Connector | ||
| 2006 | GMC | Yukon XL 1500 | N/A | Black and Purple; 3 Term. Female; Harness Connector | ||
| 2006 | GMC | Yukon XL 2500 | 6.0L | V8 | N/A | Black and Purple; 3 Term. Female; Harness Connector |
| 2006 | GMC | Yukon XL 2500 | 8.1L | V8 | N/A | Black and Purple; 3 Term. Female; Harness Connector |
| 2005 | Chevrolet | Avalanche 1500 | N/A | Black and Purple; 3 Term. Female; Harness Connector | ||
| 2005 | Chevrolet | Avalanche 2500 | N/A | Black and Purple; 3 Term. Female; Harness Connector | ||
| 2005 | Chevrolet | Silverado 2500 HD | 8.1L | V8 | N/A | 3 Term.; Black and Purple; Harness Connector |
| 2005 | Chevrolet | Silverado 3500 | 8.1L | V8 | N/A | 3 Term.; Black and Purple; Harness Connector |
| 2005 | Chevrolet | Suburban 1500 | N/A | Black and Purple; 3 Term. Female; Harness Connector | ||
| 2005 | Chevrolet | Suburban 2500 | 6.0L | V8 | N/A | Black and Purple; 3 Term. Female; Harness Connector |
| 2005 | Chevrolet | Suburban 2500 | 8.1L | V8 | N/A | Black and Purple; 3 Term. Female; Harness Connector |
| 2005 | Chevrolet | Tahoe | N/A | Black and Purple; 3 Term. Female; Harness Connector | ||
| 2005 | GMC | Sierra 2500 HD | 8.1L | V8 | N/A | Black and Purple; 3 Term. Female; Harness Connector |
| 2005 | GMC | Sierra 3500 | 8.1L | V8 | N/A | Black and Purple; 3 Term. Female; Harness Connector |
| 2005 | GMC | Yukon | N/A | Black and Purple; 3 Term. Female; Harness Connector | ||
| 2005 | GMC | Yukon XL 1500 | N/A | Black and Purple; 3 Term. Female; Harness Connector | ||
| 2005 | GMC | Yukon XL 2500 | 6.0L | V8 | N/A | Black and Purple; 3 Term. Female; Harness Connector |
| 2005 | GMC | Yukon XL 2500 | 8.1L | V8 | N/A | Black and Purple; 3 Term. Female; Harness Connector |
| 2004 | Chevrolet | Avalanche 1500 | N/A | Black and Purple; 3 Term. Female; Harness Connector | ||
| 2004 | Chevrolet | Avalanche 2500 | N/A | Black and Purple; 3 Term. Female; Harness Connector | ||
| 2004 | Chevrolet | Silverado 2500 HD | 8.1L | V8 | N/A | 3 Term.; Black and Purple; Harness Connector |
| 2004 | Chevrolet | Silverado 3500 | 8.1L | V8 | N/A | 3 Term.; Black and Purple; Harness Connector |
| 2004 | Chevrolet | Suburban 1500 | N/A | Black and Purple; 3 Term. Female; Harness Connector | ||
| 2004 | Chevrolet | Suburban 2500 | 6.0L | V8 | N/A | Black and Purple; 3 Term. Female; Harness Connector |
| 2004 | Chevrolet | Suburban 2500 | 8.1L | V8 | N/A | Black and Purple; 3 Term. Female; Harness Connector |
| 2004 | Chevrolet | Tahoe | N/A | Black and Purple; 3 Term. Female; Harness Connector | ||
| 2004 | GMC | Sierra 2500 HD | 8.1L | V8 | N/A | Black and Purple; 3 Term. Female; Harness Connector |
| 2004 | GMC | Sierra 3500 | 8.1L | V8 | N/A | Black and Purple; 3 Term. Female; Harness Connector |
| 2004 | GMC | Yukon | N/A | Black and Purple; 3 Term. Female; Harness Connector | ||
| 2004 | GMC | Yukon XL 1500 | N/A | Black and Purple; 3 Term. Female; Harness Connector | ||
| 2004 | GMC | Yukon XL 2500 | 6.0L | V8 | N/A | Black and Purple; 3 Term. Female; Harness Connector |
| 2004 | GMC | Yukon XL 2500 | 8.1L | V8 | N/A | Black and Purple; 3 Term. Female; Harness Connector |
| 2003 | Chevrolet | Avalanche 1500 | N/A | Black and Purple; 3 Term. Female; Harness Connector | ||
| 2003 | Chevrolet | Avalanche 2500 | N/A | Black and Purple; 3 Term. Female; Harness Connector | ||
| 2003 | Chevrolet | Silverado 2500 HD | 8.1L | V8 | N/A | 3 Term.; Black and Purple; Harness Connector |
| 2003 | Chevrolet | Silverado 3500 | 8.1L | V8 | N/A | 3 Term.; Black and Purple; Harness Connector |
| 2003 | Chevrolet | Suburban 1500 | N/A | Black and Purple; 3 Term. Female; Harness Connector | ||
| 2003 | Chevrolet | Suburban 2500 | 6.0L | V8 | N/A | Black and Purple; 3 Term. Female; Harness Connector |
| 2003 | Chevrolet | Suburban 2500 | 8.1L | V8 | N/A | Black and Purple; 3 Term. Female; Harness Connector |
| 2003 | Chevrolet | Tahoe | N/A | Black and Purple; 3 Term. Female; Harness Connector | ||
| 2003 | GMC | Sierra 2500 HD | 8.1L | V8 | N/A | Black and Purple; 3 Term. Female; Harness Connector |
| 2003 | GMC | Sierra 3500 | 8.1L | V8 | N/A | Black and Purple; 3 Term. Female; Harness Connector |
| 2003 | GMC | Yukon | N/A | Black and Purple; 3 Term. Female; Harness Connector | ||
| 2003 | GMC | Yukon XL 1500 | N/A | Black and Purple; 3 Term. Female; Harness Connector | ||
| 2003 | GMC | Yukon XL 2500 | 6.0L | V8 | N/A | Black and Purple; 3 Term. Female; Harness Connector |
| 2003 | GMC | Yukon XL 2500 | 8.1L | V8 | N/A | Black and Purple; 3 Term. Female; Harness Connector |
| 2002 | Chevrolet | Avalanche 1500 | N/A | Black and Purple; 3 Term. Female; Harness Connector | ||
| 2002 | Chevrolet | Avalanche 2500 | N/A | Black and Purple; 3 Term. Female; Harness Connector | ||
| 2002 | Chevrolet | Express 1500 | N/A | 3 Term.; Harness Connector | ||
| 2002 | Chevrolet | Express 2500 | N/A | 3 Term.; Harness Connector | ||
| 2002 | Chevrolet | Express 3500 | N/A | 3 Term.; Harness Connector | ||
| 2002 | Chevrolet | G30 | N/A | 3 Term.; Harness Connector | ||
| 2002 | Chevrolet | Silverado 1500 | N/A | Black and Purple; 3 Term. Female; Harness Connector | ||
| 2002 | Chevrolet | Silverado 1500 HD | N/A | Black and Purple; 3 Term. Female; Harness Connector | ||
| 2002 | Chevrolet | Silverado 2500 | N/A | Black and Purple; 3 Term. Female; Harness Connector | ||
| 2002 | Chevrolet | Silverado 2500 HD | N/A | Black and Purple; 3 Term. Female; Harness Connector | ||
| 2002 | Chevrolet | Silverado 2500 HD | 8.1L | V8 | N/A | Harness Connector |
| 2002 | Chevrolet | Silverado 2500 HD | 8.1L | V8 | N/A | 3 Term.; Black and Purple; Harness Connector |
| 2002 | Chevrolet | Silverado 3500 | 8.1L | V8 | N/A | Harness Connector |
| 2002 | Chevrolet | Suburban 1500 | N/A | Black and Purple; 3 Term. Female; Harness Connector | ||
| 2002 | Chevrolet | Suburban 1500 | N/A | Harness Connector | ||
| 2002 | Chevrolet | Suburban 2500 | 8.1L | V8 | N/A | Harness Connector |
| 2002 | Chevrolet | Tahoe | N/A | Black and Purple; 3 Term. Female; Harness Connector | ||
| 2002 | Chevrolet | Tahoe | N/A | Harness Connector | ||
| 2002 | GMC | Savana 1500 | N/A | 3 Term.; Harness Connector | ||
| 2002 | GMC | Savana 2500 | N/A | 3 Term.; Harness Connector | ||
| 2002 | GMC | Savana 3500 | 5.7L | V8 | N/A | 3 Term.; Harness Connector |
| 2002 | GMC | Savana 3500 | 6.5L | V8 | N/A | 3 Term.; Harness Connector |
| 2002 | GMC | Savana 3500 | 4.3L | V6 | N/A | 3 Term.; Harness Connector |
| 2002 | GMC | Savana 3500 | 8.1L | V8 | N/A | 3 Term.; Harness Connector |
| 2002 | GMC | Sierra 2500 HD | 8.1L | V8 | N/A | Harness Connector |
| 2002 | GMC | Sierra 2500 HD | 8.1L | V8 | N/A | Black and Purple; 3 Term. Female; Harness Connector |
| 2002 | GMC | Sierra 3500 | 8.1L | V8 | N/A | Harness Connector |
| 2002 | GMC | Yukon | N/A | Black and Purple; 3 Term. Female; Harness Connector | ||
| 2002 | GMC | Yukon XL 1500 | N/A | Black and Purple; 3 Term. Female; Harness Connector | ||
| 2002 | GMC | Yukon XL 2500 | 8.1L | V8 | N/A | Harness Connector |
| 2001 | Chevrolet | Express 1500 | N/A | 3 Term.; Harness Connector | ||
| 2001 | Chevrolet | Express 2500 | N/A | 3 Term.; Harness Connector | ||
| 2001 | Chevrolet | Express 3500 | N/A | 3 Term.; Harness Connector | ||
| 2001 | Chevrolet | G30 | N/A | 3 Term.; Harness Connector | ||
| 2001 | Chevrolet | Silverado 1500 | N/A | Black and Purple; 3 Term. Female; Harness Connector | ||
| 2001 | Chevrolet | Silverado 1500 HD | N/A | Black and Purple; 3 Term. Female; Harness Connector | ||
| 2001 | Chevrolet | Silverado 2500 | N/A | Black and Purple; 3 Term. Female; Harness Connector | ||
| 2001 | Chevrolet | Silverado 2500 HD | N/A | Black and Purple; 3 Term. Female; Harness Connector | ||
| 2001 | Chevrolet | Silverado 2500 HD | 8.1L | V8 | N/A | Harness Connector |
| 2001 | Chevrolet | Silverado 2500 HD | 8.1L | V8 | N/A | 3 Term.; Black and Purple; Harness Connector |
| 2001 | Chevrolet | Silverado 3500 | 8.1L | V8 | N/A | Harness Connector |
| 2001 | Chevrolet | Suburban 1500 | N/A | Black and Purple; 3 Term. Female; Harness Connector | ||
| 2001 | Chevrolet | Suburban 1500 | N/A | Harness Connector | ||
| 2001 | Chevrolet | Suburban 2500 | 8.1L | V8 | N/A | Harness Connector |
| 2001 | Chevrolet | Tahoe | N/A | Black and Purple; 3 Term. Female; Harness Connector | ||
| 2001 | Chevrolet | Tahoe | N/A | Harness Connector | ||
| 2001 | GMC | Savana 1500 | N/A | 3 Term.; Harness Connector | ||
| 2001 | GMC | Savana 2500 | N/A | 3 Term.; Harness Connector | ||
| 2001 | GMC | Savana 3500 | N/A | 3 Term.; Harness Connector | ||
| 2001 | GMC | Sierra 2500 HD | 8.1L | V8 | N/A | Harness Connector |
| 2001 | GMC | Sierra 2500 HD | 8.1L | V8 | N/A | Black and Purple; 3 Term. Female; Harness Connector |
| 2001 | GMC | Sierra 3500 | 8.1L | V8 | N/A | Harness Connector |
| 2001 | GMC | Yukon | N/A | Black and Purple; 3 Term. Female; Harness Connector | ||
| 2001 | GMC | Yukon XL 1500 | N/A | Black and Purple; 3 Term. Female; Harness Connector | ||
| 2001 | GMC | Yukon XL 2500 | 8.1L | V8 | N/A | Harness Connector |
| 1999 | GMC | P3500 | N/A | 3 Term.; Harness Connector |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.