Four Seasons 37240 A/C Compressor Cut-Out Switch Harness Connector

Harness Connector for A/C Repair

The Four Seasons 37240 harness connector is a direct-fit electrical repair component for A/C compressor cut-off switch circuits. It is built for vehicles that use a 2-pin oval connector with a male housing and female terminals, making it a practical solution for restoring a damaged HVAC connection.

Use this Four Seasons harness connector when the original A/C pressure switch plug is cracked, corroded, or no longer locks securely. It supports repair work on a wide range of Chevrolet, GMC, Buick, Cadillac, and related applications, including Silverado, Sierra, Tahoe, Yukon, Express van, and Trax platforms.

Key Features

• Four Seasons Harness Connector, part number 37240
• A/C compressor cut-off switch harness connector for HVAC electrical repair
• 2-terminal design with oval connector shape
• Male connector housing with female terminals
• Pin-style connector type for pressure switch repair applications
• Fits a broad range of GM vehicles, including Chevrolet Silverado, GMC Sierra, Buick Encore, and Chevrolet Express models

Product Details

The Four Seasons Harness Connector line focuses on replacement electrical connectors used in HVAC service and repair. Part number 37240 is specified as an A/C compressor cut-off switch harness connector, and its 2-pin oval configuration matches common pressure switch connector layouts found across many GM platforms. For technicians and DIY repairs, this connector helps restore the electrical interface at the compressor cut-off or pressure switch without replacing the full harness.

This part cross-references Global Parts Distributors LLC 1711878 for the same application. It is also listed under Four Seasons 37240.

Common Repair Uses

• Broken or brittle A/C pressure switch connector housing
• Corroded terminals at the compressor cut-off switch plug
• Intermittent A/C operation caused by poor electrical contact
• Damaged HVAC connector from heat, vibration, or service wear
• Failed connector retention at the A/C switch or transducer

Installation Notes

Verify connector shape, terminal count, and terminal gender before installation. This part is listed for vehicles such as 2013-2021 Buick Encore, 2013-2021 Chevrolet Trax, 2003-2010 Chevrolet Silverado 1500, 2000-2009 GMC Yukon, and 1996-2004 Chevrolet Astro. Some applications include notes such as w/ Delphi Compressor or w/ Mitsubishi Compressor, so confirm the original compressor and switch style before ordering.

For best results, inspect the mating terminals, repair any heat-damaged wiring, and ensure the connector locks fully into place. On vehicles like Chevrolet Express, GMC Savana, and Silverado/Sierra trucks, matching the oval 2-pin layout is critical for a proper repair.

Quality Assurance

Four Seasons supplies HVAC service parts and electrical repair components for a wide range of automotive applications. Part number 37240 is cataloged for direct replacement use in listed fitments, including Chevrolet, GMC, Buick, Cadillac, Saab, Pontiac, Hummer, and Isuzu models.