Four Seasons HVAC Cut-Off Switch P/N:36665
Help protect your A/C compressor with the Four Seasons HVAC Cut-Off Switch / Low Cut-Out Pressure Switch, part number 20895. This system-mounted switch monitors refrigerant pressure and opens the compressor circuit when pressure drops too low. It fits many vehicles, among them the 1987-1990 Chevrolet Celebrity, 1987-1992 Buick Century and 1987-1991 Pontiac 6000, and is a direct-fit replacement for the listed applications. See the "Vehicles it fits" section for the full list.
This part is listed under both names, HVAC cut-off switch and low cut-out pressure switch. Four Seasons engineers and tests it, drawing on more than 50 years of mobile A/C experience.
Signs this switch may need replacing include an A/C compressor that will not engage, or a system that blows warm air even with a correct refrigerant charge. Low refrigerant and other faults can cause the same symptoms, so diagnose the system before replacing the switch. If a failed low cut-out switch is the cause, this part replaces it.
Interchange: 206989 · 11120895 · 10042669 · 1711807 · A06989 · MT1231 · SW11653C
This part cross-references / interchanges with the following part numbers:
Will this Century switch fit my 1987-1992 Buick Century?
Yes. The Four Seasons 20895 is listed as a direct-fit replacement for the 1987-1992 Buick Century. The "Vehicles it fits" section shows every listed vehicle.
Is this Celebrity switch listed for the 1987-1990 Chevrolet Celebrity?
Yes. It is listed for the 1987-1990 Chevrolet Celebrity and also fits the 1987-1991 Pontiac 6000. See the "Vehicles it fits" section for the full list.
What does a low cut-out pressure switch do?
It monitors refrigerant pressure in the A/C system and opens the compressor circuit when pressure falls too low. This helps protect the compressor from running without enough refrigerant.
What comes with the Four Seasons 20895?
You get the switch plus the gaskets, O-rings or seals needed to replace it properly. It is zinc coated to resist corrosion and color coded for easy identification.
What are signs the A/C low cut-out switch may need replacing?
Common signs are a compressor that won't engage or A/C that blows warm with a correct refrigerant charge. Diagnose the system first, because low charge and other faults can cause the same symptoms.
No reviews yet — be the first to review this product.
Write a Review
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.