Four Seasons HVAC Pressure Switch P/N:35761
Four Seasons 37329 switch for the 1995-2005 Peterbilt 330 and other vehicles is a system-mounted cycling pressure switch that senses pressure in the A/C system and cycles the compressor.
A compressor that won't engage, cycles on and off, or an A/C that cools poorly can mean the switch is failing. Before you replace it, rule out low refrigerant charge, a blown fuse or relay and damaged wiring, since each of those can look the same from the driver's seat. An A/C shop can test system pressure.
The switch is listed for a wide range of Peterbilt models, including the 2008-2012 Peterbilt 210 and the 1995-2012 Peterbilt 320. Open the "Vehicles it fits" section to check your exact model and engine.
The switch, plus gaskets, o-rings or seals for installation. This listing is one switch.
Does the Four Seasons 37329 fit the 2008-2012 Peterbilt 210?
Yes, Four Seasons 37329 is listed for the 2008-2012 Peterbilt 210 and the 1995-2012 Peterbilt 320, among other Peterbilt models. Use the "Vehicles it fits" section to check your exact model and engine.
Does the Four Seasons 37329 switch come with gaskets or o-rings?
Yes, Four Seasons 37329 contains gaskets, o-rings or seals for replacing the switch, and this listing is a single switch.
Is this Four Seasons switch coated against corrosion?
Yes. This switch is zinc coated to resist corrosion, and it is color coded for easy identification.
What can a failing A/C cycling pressure switch look like?
Signs can include a compressor that won't engage, one that cycles on and off oddly, or weak cooling. A shop can test the A/C system pressure and the switch.
How much A/C experience is behind the Four Seasons 37329?
Four Seasons has over 50 years of mobile A/C experience behind its parts. The 37329 switch is engineered and tested for trouble-free operation.
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WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.