Keep your A/C system reading pressure accurately with the Four Seasons switch 37349, a system-mounted HVAC pressure transducer. It monitors refrigerant pressure in the air-conditioning system and sends a variable electrical signal to the control module, which uses that reading to manage compressor operation. If a failed pressure transducer is the cause of erratic compressor cycling or a stored A/C pressure code, this unit replaces it. It installs as a direct-fit replacement across a wide range of International and Peterbilt trucks, including the 2001-2011 International 5500i, 2002-2011 International 7400 and 1995-2014 Peterbilt 320 — see the "Vehicles it fits" section for the full list.
- Zinc coated to resist corrosion.
- Includes the gaskets, o-rings, or seals needed to properly replace the product.
- Color coded for easy identification.
- Vehicle-specific application — engineered and tested by Four Seasons.
Backed by decades of mobile A/C experience.
Interchange: 937349 · 651187 · BA1645 · 8508907 · 9047790 · ABPN83323065 · S17940 · 1711749 · 2213013 · 1473 · A03749 · 3546241C1 · 2930095 · MT3512K · 71R6260 · RD5146040P · MT3512 · BA16450 · 110836 · SW11312C
This part cross-references / interchanges with the following part numbers:
937349, 651187, BA1645, 37349, 8508907, 9047790, ABPN83323065, S17940, 1711749, 3546241C1, 2213013, 1473, A03749, 2930095, MT3512K, 71R6260, RD5146040P, MT3512, BA16450, 110836, SW11312C
Frequently Asked Questions
What does this Four Seasons pressure transducer do?
It's a system-mounted transducer that monitors refrigerant pressure in the A/C system and sends a variable electrical signal to the control module, which uses that reading to manage compressor operation.
Does it come with the seals needed for installation?
Yes. It contains the gaskets, o-rings, or seals needed to properly replace the product.
Which vehicles does this switch fit?
It's a direct-fit replacement for many International and Peterbilt trucks, including the 2002-2011 International 7400 and 1995-2014 Peterbilt 320. See the "Vehicles it fits" section for the full list.
What are signs my A/C pressure transducer may need replacing?
Erratic compressor cycling, an A/C system that won't cool, or a stored pressure-related HVAC code can be signs. Diagnose the cause first, since these symptoms can have other sources.
Is this transducer protected against corrosion?
Yes. It is zinc coated to resist corrosion, and it's color coded for easy identification.
