Perkins 145206210 Thermostat

The Perkins 145206210 thermostat regulates engine coolant temperature by controlling coolant flow between the engine and radiator. It utilizes a wax-pellet actuation mechanism calibrated to open at 82°C (180°F), ensuring rapid engine warm-up and stable operating temperature under varying load conditions. This component is engineered for Perkins 100 Series and 400 Series diesel engines, specifically compatible with engine build prefixes GJ, GK, GN, KD, KE, KF, KG, KH, and KK. The thermostat assembly includes the valve body, wax element, spring, and seal. It serves as a direct replacement for Perkins OEM part numbers 145206210, 145016470, 145206022, and 145206021. Cross-reference interchangeability extends to New Holland SBA145206210, Northern Lights NL-145206210, Multiquip 145206210, and aftermarket references 871292, P871292, 988-753, and 83986760. Installation requires verification of engine serial number against the engine build list to confirm exact compatibility, as multiple thermostat types may apply across engine variants.