One of the most critical items in any engine is the thermostat or coolant temperature regulator. These items are a key component of any engine overhaul. To ensure that your engine does not overheat, we recommend that you fit KMP Brand ® thermostats. KMP stocks all the most popular models of KMP Brand ® replacement Thermostats suitable for your Cummins, Caterpillar, Komatsu, Detroit Diesel, John Deere, Case IH, Perkins & Massey Ferguson or Ford engine.