Keep the cabin cold and refrigerant circulating with the Four Seasons A/C Compressor 158377. It installs as a direct-fit replacement for the listed Dodge Ram and Ram pickups and chassis-cab trucks, taking the place of a worn or seized original compressor at the heart of the air-conditioning system.
Belt-driven off the engine accessory drive, the compressor draws low-pressure refrigerant vapor from the evaporator side and compresses it into high-pressure vapor, pushing it toward the condenser so the system can shed heat and deliver cool air.
- Core A/C job: compresses low-pressure refrigerant vapor and moves it through the system.
- Belt-driven: turns with the engine accessory drive and engages through its clutch when the A/C is switched on.
- Direct fit: designed to replace the original compressor on the listed applications.
Signs the original may need replacing: warm air from the vents, a compressor that won't engage, or noise from the compressor while the A/C runs. Have the system diagnosed first, since those symptoms can also come from refrigerant charge, the clutch, or other components; if a failed compressor is the cause, this unit replaces it.
Fitment: 2009-2010 Dodge Ram 1500; 2009-2010 Dodge Ram 2500; 2009 Dodge Ram 3500; 2009-2010 Dodge Ram 4000; 2011-2012 Ram 1500; 2011-2025 Ram 2500; 2011-2025 Ram 3500; 2011-2012 and 2019-2020 Ram 4000; 2014-2024 Ram 4500; 2014-2024 Ram 5500. See the Buyer's Guide tab for the full list.
Manufacturer part number 158377.
