Review on Stant 14289 Thermostat Degrees Fahrenheit by Kenny Shaver

After running my Ram Cummins 01 for several months and starting it in cold weather, it does not keep the temperature constant at 190. Usually this can cause the engine only accelerate to 170 -180, even from fully clogged bars and a half-hour drive on the highway. I am looking for a replacement thermostat.