This Cummins 3934373 180 Degree Thermostat Kit is an OEM replacement 180 Degree Thermostat, Thermostat Seal Ring and Thermostat Housing Seal for the Cummins 12 Valve 5.9L Diesel engine. These OEM Cummins parts are the stock replacement parts needed for a leak-proof 180 thermostat change for the correct engine operating temperatures. This OEM Cummins 12 Valve Thermostat Kit contains the 3 required Original Equipment Manufacturer parts which were installed at the factory.
The 5.9L Cummins 180 Degree Thermostat on your Dodge Ram allows low-temperature coolant from the radiator into the engine to keep the operating temperature within a predetermined range. Operating a Cummins 5.9L with a lousy thermostat will cause the thermostat to get stuck in the open or closed position. A defective thermostat will cause the engine to operate either below the correct operating temperature or above it leading to an overheat condition. If you are currently experiencing any of these engine operating temperature symptoms, it's time to replace the 5.9L Cummins 180 Degree Thermostat Kit yourself to alleviate this issue.
This Replacement Cummins OEM, 180 Degree Thermostat, and Seals Kit are for the 1994 to 1998 Dodge Ram 5.9L trucks are MADE IN THE USA!