Four Seasons HVAC Binary Switch 20987
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Four Seasons HVAC Binary Switch 20987
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Four Seasons HVAC Binary Switch P/N:20987

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$53.99
MPN: 20987
Item Package Quantity: 1
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Four Seasons HVAC Binary Switch P/N:20987
Four Seasons HVAC Binary Switch P/N:20987
$53.99

Help protect the A/C compressor in your 1989-1992 Nissan Maxima or 1990-1992 Nissan Stanza with the Four Seasons HVAC Binary Switch, part number 20987. This system-mounted binary pressure switch monitors refrigerant pressure and opens the compressor clutch circuit when pressure falls too low or climbs too high. It installs as a direct-fit replacement for the listed applications.

Four Seasons draws on more than 50 years of mobile A/C experience, and this Four Seasons switch is engineered and tested for vehicle-specific applications.

  • Corrosion resistance: Zinc coated to resist corrosion.
  • Vehicle specific: Built for the listed applications.
  • Ready to install: Comes with the gaskets, O-rings or seals needed to properly replace the switch.
  • Color coded: Marked for easy identification.

A compressor clutch that won't engage and warm air from the vents can be signs that a binary switch needs replacing. Low refrigerant, wiring or relay faults can cause the same symptoms, so diagnose the system first. If a failed switch is the cause, this part replaces it. See the Buyer's Guide tab for engine details.

Interchange: 1551057 · 207798 · 11120987 · 9213785E00 · 19188206 · 1711802 · A07798 · 50002 · MT0393

This part cross-references / interchanges with the following part numbers:

1551057, 207798, 20987, 11120987, 9213785E00, 19188206, 1711802, A07798, 50002, MT0393

Frequently Asked Questions

Does this Maxima switch also fit the Stanza?

Yes. It is listed for the 1989-1992 Nissan Maxima and the 1990-1992 Nissan Stanza. Check the Buyer's Guide tab to confirm your exact vehicle.

What does a binary pressure switch do?

It monitors refrigerant pressure in the A/C system. It opens the compressor clutch circuit if pressure is too low or too high, which helps protect the compressor.

What comes in the box?

The switch comes with the gaskets, O-rings or seals needed to properly replace it.

What are signs this switch may need replacing?

Signs include a compressor that won't engage and warm air from the vents. Other faults can cause the same symptoms, so diagnose the system before you replace the switch.

How is the switch installed?

It mounts in the A/C system. Follow the vehicle service information. If the procedure requires opening the system, the refrigerant must be handled with proper recovery equipment.

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