Monitor refrigerant pressure in your air conditioning system with this Four Seasons switch, part number 20978, a system-mounted binary pressure switch made for vehicle-specific applications. It fits many vehicles, among them the 1986-1989 Nissan Sentra, 1985-1990 Nissan Pulsar NX / NX and 1985-1990 Nissan Pulsar NX. See the Buyer's Guide tab for the full list.
A binary pressure switch reads refrigerant pressure and is designed to open the compressor clutch circuit when pressure falls too low or climbs too high, which helps protect the compressor. The 20978 is a direct-fit replacement for the listed applications and offers these features:
- Corrosion resistance: zinc coated to help resist corrosion.
- Seals included: comes with the gaskets, O-rings or seals needed to replace the switch properly.
- Easy identification: color coded so the switch is simple to identify.
- Vehicle-specific: built for specific vehicle applications.
Four Seasons engineers and tests its products and draws on more than 50 years of mobile A/C experience. If a faulty pressure switch is why your compressor won't engage or cycles on and off erratically, this part replaces it. Diagnose the system first, because a low refrigerant charge or an electrical fault can cause the same signs.
Interchange: 1551048 · 207795 · 11120978 · 9213760A00 · 9213760A10 · 19188197 · 1711788 · A07795 · MT0360 · SW10042
This part cross-references / interchanges with the following part numbers:
1551048, 207795, 20978, 11120978, 9213760A00, 9213760A10, 19188197, 1711788, A07795, MT0360, SW10042
