Cummins 3934373 Genuine 180 Degree Coolant Thermostat

Replace the failed thermostat in your Dodge Ram 5.9 diesel with a Cummins 3934373 Genuine 180 Degree Coolant Thermostat. When the original thermostat fails, it can get stuck in the open or closed position, leading to an engine that overheats or runs below the correct operating temperature. This OE thermostat ensures your engine is running at the original 180-degree stock temperature.