Four Seasons 70006 Engine Coolant Temperature Sending Unit Switch Connector

Engine Coolant Temperature Connector

Four Seasons 70006 is a harness connector for the engine coolant temperature sending unit switch circuit. It uses a male connector body with a 3-terminal female terminal layout and an oval shape for a direct electrical connection at the sensor interface.

Built for Chevrolet and GMC truck, van, and SUV applications, this Four Seasons harness connector supports repair work on common GM cooling-system electrical connections. The 70006 connector is a practical replacement when the original plug is heat-damaged, brittle, corroded, or no longer locks securely to the sensor.

Key Features

• Brand: Four Seasons Harness Connector
• Part number: 70006
• Engine coolant temperature sending unit switch connector
• Male connector with 3 female terminals
• Oval connector shape
• Black and purple harness connector configuration noted in fitment data
• Direct replacement style for selected GM applications

Detailed Description

The Four Seasons 70006 connector is designed for engine coolant temperature sending unit switch connections on select Chevrolet and GMC vehicles. This harness connector is listed across multiple Silverado, Sierra, Tahoe, Suburban, Yukon, Avalanche, Express, Savana, G30, and P3500 applications, including 2001-2006 Chevrolet Silverado 2500 HD, 2001-2006 GMC Sierra 2500 HD, and 2001-2006 Chevrolet Tahoe. It is also referenced for 2007 Chevrolet Silverado 2500 HD Classic and 2007 GMC Sierra 3500 Classic applications.

This part cross-references Edelmann 70006 for the same application. If you are searching for a Four Seasons 70006 connector for Chevrolet Silverado or GMC Sierra cooling-system electrical repair, this listing provides the connector details needed to match the original harness interface.

What It Helps Fix

• Broken or cracked coolant temperature sensor connector housing
• Corrosion at the terminal connection
• Loose or intermittent sensor electrical contact
• Heat-related damage to the original harness plug
• Faulty coolant temperature signal at the sending unit switch

Installation Notes and Tips

Verify connector shape, terminal count, and terminal gender before installation. Match the original black and purple wire configuration and confirm the connector seats fully on the engine coolant temperature sending unit switch. Compare the vehicle application carefully for Chevrolet Silverado, GMC Sierra, Tahoe, Suburban, Yukon, and related GM platforms listed in the fitment data.

• Fits 2001-2006 Chevrolet Silverado 2500 HD, N/A
• Fits 2001-2006 GMC Sierra 2500 HD, N/A
• Fits 2001-2006 Chevrolet Tahoe, N/A
• Fits 2001-2006 GMC Yukon, N/A
• Fits 2007 Chevrolet Silverado 2500 HD Classic, N/A
• Fits 2007 GMC Sierra 3500 Classic, N/A

Quality Assurance

Four Seasons is a recognized aftermarket brand for vehicle climate and electrical service parts. Part number 70006 is cataloged as a harness connector with defined terminal and shape specifications to support accurate application matching.