Four Seasons HVAC Binary Switch P/N:20942

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$30.99
MPN: 20942
Item Package Quantity: 1
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Four Seasons HVAC Binary Switch P/N:20942
Four Seasons HVAC Binary Switch P/N:20942
$30.99

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.

  • Zinc-coated: A zinc coating resists corrosion.
  • Vehicle-specific: Built for specific vehicle applications.
  • Seals included: Comes with the gaskets, O-rings or seals needed to replace the product properly.
  • Color-coded: Makes the switch easy to identify.

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:

1551018, 207754, 20942, 11120942, 19188166, 1711471, A07754, MT0355, 8864530281, 8864530320, SW10053, SW10053C

Frequently Asked Questions

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.