Four Seasons 35967 A/C Condenser Fan Switch

Four Seasons 35967 Pressure Switch

The Four Seasons Pressure Switch 35967 is a compressor-mounted A/C condenser fan switch built for vehicles that use a clip-in, no-thread pressure connection. It monitors refrigerant pressure and helps control cooling fan operation in the HVAC system, supporting stable A/C performance on Chevrolet, GMC, and Geo applications.

Four Seasons Pressure Switch line components are built for direct replacement use in HVAC service, with this unit meeting or exceeding OEM requirements. The purple connector, male terminal design, and plastic/metal construction are specified for the listed compressor-mounted applications.

Key Features

• Part number: 35967
• Pressure-style cooling fan switch for compressor-mounted HVAC systems
• Operate pressure points: 160 psi off, 250 psi on
• Purple connector color with 2 terminals and male connector gender
• No-thread, clip-in fitting thread design
• Plastic / metal construction
• Meets or exceeds OEM specifications

Application Details

Compatible With Chevrolet Astro, Blazer, C1500, Chevy Pickup, Express 1500, Express 2500, Express 3500, G30, LUV, P30, S10, Silverado 1500, Silverado 1500 HD, Silverado 2500, Silverado 2500 HD, Silverado 3500, Suburban 1500, Suburban 2500, Tahoe, Tracker, Lumina APV, Lumina Van, and other listed Chevrolet applications. Compatible With GMC Jimmy, Safari, Savana 1500, Savana 2500, Savana 3500, Sierra 1500, Sierra 1500 HD, Sierra 2500, Sierra 2500 HD, Sierra 3500, Sonoma, Yukon, Yukon XL 1500, Yukon XL 2500, and other listed GMC applications. Compatible With Geo Tracker and additional listed models from 1983-2001.

This part cross-references Gates 22775 and DENSO Auto Parts 5062 for the same application.

What It Helps Address

• A/C condenser fan not cycling with system pressure changes
• Compressor-mounted pressure switch failure
• Intermittent cooling fan operation tied to HVAC pressure control
• Loss of proper refrigerant pressure signaling to the fan circuit
• Replacement needs for OE 1-terminal green switch applications noted in the fitment data

Installation Notes and Tips

Install on the compressor-mounted location specified for the vehicle. Verify the harness connector matches the listed connector style before installation, and follow the vehicle-specific instructions referenced in the fitment notes. Because this switch uses a no-thread, clip-in design, confirm the retaining interface is clean and properly seated during service.

Quality Assurance

Four Seasons 35967 is specified as an OEM-level replacement part that meets or exceeds OEM requirements for the listed applications. Use the fitment notes to confirm the correct compressor-mounted configuration before ordering or installation.