A/C System Switch for 2003 Freightliner FLD132 & More - Four Seasons 35761

Help protect your truck's A/C compressor from running at unsafe refrigerant pressures with the Four Seasons switch 35761, a system-mounted binary pressure switch for the HVAC system. It fits many vehicles, among them the 2003 Freightliner FLD132, 1994-1999 Freightliner FLB and 2001-2003 Freightliner Classic, as a direct-fit replacement for the listed applications. See the Buyer's Guide tab for the full list.

A binary pressure switch monitors refrigerant pressure in the A/C system. It is designed to interrupt compressor operation when pressure drops too low or climbs too high, which helps guard the compressor against damage.

• System-mounted binary design: Mounts directly in the A/C system to sense refrigerant pressure.
• Zinc coated: Resists corrosion.
• Sealing parts supplied: Packed with the gaskets, O-rings or seals needed to properly replace the switch.
• Color coded: Easy to identify.
• Vehicle specific: Built for specific vehicle applications.

Four Seasons engineers and tests its parts and backs them with more than 50 years of mobile A/C experience. Signs the pressure switch may need replacing include a compressor that won't engage, erratic compressor cycling, or refrigerant leaking at the switch. Diagnose the system before replacing parts, because a low refrigerant charge or other components can cause the same symptoms.