Help protect your A/C compressor with this Four Seasons switch, part number 20991, a system-mounted trinary pressure switch that monitors refrigerant pressure. It fits several vehicles, including the 1999-2003 Lexus RX300, 1994-1998 Mitsubishi Galant and 1991-1992 Mitsubishi Mirage. It is a direct-fit replacement for the listed applications. See the Buyer's Guide tab for full fitment details.
A trinary switch combines three pressure-sensing jobs in one unit. It opens the compressor circuit when refrigerant pressure is too low or too high, and it provides a mid-pressure signal commonly used to control the condenser fan. Four Seasons engineers and tests its products and backs them with more than 50 years of mobile A/C experience.
- Corrosion protection: zinc coated to resist corrosion.
- Vehicle-specific: built for specific vehicle applications.
- Sealing parts supplied: contains the gaskets, O-rings or seals needed to properly replace the product.
- Easy to identify: color coded for quick identification.
Signs this switch may need replacing include a compressor that won't engage or cycles erratically, a condenser fan that doesn't come on, or warm air from the vents. Other A/C faults can cause these symptoms, so diagnose the system before replacing parts. Follow the vehicle service information for installation, and use proper recovery equipment for any work that opens the refrigerant circuit.
Interchange: 1551060 · 207810 · 11120991 · 19188209 · 1711481 · 8864548020 · MB630445 · MB813384 · A07810 · 50029 · MT0379 · SW10029 · SW10029C
This part cross-references / interchanges with the following part numbers:
1551060, 207810, 11120991, 20991, 19188209, 1711481, 8864548020, MB630445, MB813384, A07810, 50029, MT0379, SW10029, SW10029C
