Help your cooling fan switch on when the A/C system calls for it with the Four Seasons switch, part number 35967. It is a compressor-mounted cooling fan pressure switch, also listed as an A/C condenser fan switch. It fits many vehicles, among them the 1988-2001 Chevrolet C1500, 1999-2001 Chevrolet Silverado 1500 and 1988-1999 Chevrolet K1500. See the "Vehicles it fits" section for the full list and engine details.
This switch mounts on the A/C compressor and responds to system pressure. It is designed to help control when the condenser cooling fan runs while the A/C is working. If a failed original switch is the reason your fan isn't engaging, this unit replaces it.
- Corrosion protection: zinc coated to resist corrosion.
- Updated design: an improved 2-terminal design that replaces the older 1-terminal switch.
- Ready to install: contains the gaskets, O-rings or seals needed to properly replace the product.
- Easy to identify: color coded so it is easy to pick out.
Four Seasons engineers and tests its products and brings more than 50 years of mobile A/C experience to its replacement parts. Signs this part may need replacing include a condenser fan that doesn't come on with the A/C running, weak cooling at idle or in slow traffic, and refrigerant leaking at the switch. Other fan or A/C components can cause the same symptoms, so diagnose the cause before replacing the switch.
Product information is for general reference and may contain errors. See our Disclaimer.
Frequently Asked Questions
What does the Four Seasons 35967 switch do?
It is a compressor-mounted cooling fan pressure switch. It responds to A/C system pressure and helps control when the condenser cooling fan runs.
Will it fit my 1999-2001 Chevrolet Silverado 1500?
The 1999-2001 Chevrolet Silverado 1500 is one of the listed applications, as is the 1988-2001 Chevrolet C1500. Check the "Vehicles it fits" section to confirm your exact vehicle.
My original switch has one terminal. Will this one work?
The 35967 uses an improved 2-terminal design that replaces the older 1-terminal switch. Consult the vehicle service information when connecting it.
What comes in the box?
The box contains the switch plus the gaskets, O-rings or seals needed to properly replace it. The switch is zinc coated to resist corrosion and color coded for easy identification.
What are signs this switch may need replacing?
Signs include a condenser fan that doesn't engage with the A/C on, weak cooling at idle, or a leak at the switch. Diagnose the cause first, because other components can cause the same symptoms.
