Four Seasons A/C Trinary Switch P/N:20948
Four Seasons 36581 switch for the 1994-1997 Volvo 850 Series and other vehicles senses refrigerant pressure in the A/C system; it is also listed as a system mounted trinary pressure switch.
A warm vent, or a compressor that won't engage, can mean the switch has failed, though low refrigerant or a wiring fault can look just the same. With the engine off, look over the switch connector and its fittings for corrosion, damage or oily residue before you replace anything, and leave pressure readings to a shop.
It also fits the 1994-1997 Volvo 850.
Gaskets, o-rings or seals for replacing the switch.
Interchange: 1551132 · 207469 · 11136581 · 19189570 · 801817 · 1711841 · A77469 · MT0987 · SW11461C · 9132754
This part cross-references / interchanges with the following part numbers:
Does this fit as a 1994-1997 Volvo 850 switch?
Yes. Four Seasons 36581 fits the 1994-1997 Volvo 850 and the 1994-1997 Volvo 850 Series.
Does the Four Seasons 36581 come with o-rings or seals?
Yes. Four Seasons 36581 contains gaskets, o-rings or seals for replacing the switch properly.
What kind of coating does this A/C switch have?
This switch is zinc coated to resist corrosion. It is also color coded for easy identification.
What signs can a failing A/C switch show?
Warm air from the vents or a compressor that won't engage can mean the switch has failed. A shop can read the system pressures to confirm.
Does the Four Seasons 36581 replace part number 1551132?
Yes. Four Seasons 36581 is listed as a replacement for 1551132, as well as 207469 and 801817.
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.