A/C Trinary Switch for 1990-1994 Volkswagen Jetta & More - Four Seasons 36499

Help protect your air-conditioning system from abnormal refrigerant pressure with the Four Seasons A/C Trinary Switch 36499. This system-mounted trinary pressure switch is a direct-fit Golf switch for the 1990-1994 Volkswagen Golf and also fits the 1990-1994 Volkswagen Jetta. Engine-specific details for each application are listed in the "Vehicles it fits" section.

A trinary switch combines three pressure-sensing functions in one unit. It is designed to stop compressor operation when system pressure falls too low or climbs too high, and to signal the cooling fan to engage as pressure rises. If a failed trinary switch is behind your A/C trouble, this Four Seasons switch replaces it.

• Corrosion resistance: A zinc coating helps the switch resist corrosion.
• Vehicle-specific application: Made for the listed vehicle applications.
• Sealing parts included: Comes with the gaskets, O-rings or seals needed to replace the switch properly.
• Color coded: Colored for easy identification.

Four Seasons engineers and tests its products and brings more than 50 years of mobile A/C experience to this switch.

Signs this part may need replacing include a compressor that won't engage, a cooling fan that doesn't come on with the A/C running, warm air from the vents, or refrigerant leaking at the switch. Diagnose the system before replacing parts. During installation, follow the vehicle service information and proper refrigerant-handling procedures.