Four Seasons HVAC Binary Switch P/N:20953
Help protect your A/C compressor from running at unsafe refrigerant pressures with the Four Seasons switch, part number 20942, a system-mounted binary pressure switch for the air conditioning system. It fits many vehicles, among them the 1992-1995 Toyota Paseo, 1991-1993 Toyota Previa and 1991-1993 Toyota Tercel, as a direct-fit replacement for the listed applications. See the Buyer's Guide tab for the full list and engine details.
A binary pressure switch monitors refrigerant pressure in the A/C system. It is designed to shut off compressor operation when pressure falls too low or rises too high, which helps protect the compressor and other system components.
Four Seasons backs its products with more than 50 years of mobile A/C experience.
Signs this switch may need replacing include an A/C compressor that won't engage, a compressor that cycles erratically, or warm air from the vents. These symptoms can have other causes, such as a low refrigerant charge, so diagnose the system before you replace the switch.
Interchange: 1551018 · 207754 · 11120942 · 19188166 · 1711471 · A07754 · MT0355 · 8864530281 · 8864530320 · SW10053 · SW10053C
This part cross-references / interchanges with the following part numbers:
What does an A/C binary pressure switch do?
It monitors refrigerant pressure in the A/C system. It is designed to shut off compressor operation when pressure is too low or too high, which helps protect the compressor.
Does the Four Seasons 20942 fit a 1991-1993 Toyota Previa?
Yes. The 1991-1993 Toyota Previa is a listed application, along with the 1992-1995 Toyota Paseo and the 1991-1993 Toyota Tercel. Check the Buyer's Guide tab to confirm your vehicle.
What comes with this switch?
The switch comes with the gaskets, O-rings or seals needed to replace it properly.
Does the switch resist corrosion?
Yes. It has a zinc coating to resist corrosion, and it is color-coded for easy identification.
What are signs of a failing binary pressure switch?
Possible signs include a compressor that won't engage or cycles erratically, or warm air from the vents. These symptoms can have other causes, so diagnose the A/C system first.
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.