NTCNTC is a leading supplier of OE quality thermostat and cooling system parts for the automotive aftermarket.- (76.5C/170F). 76.5C/170F (OE temp.) Mounting ring around outside diameter of thermostat also included. Other gaskets are not required. The appropriate liquid gasket sealant should be used as neededNTC is an auto parts supplier specializing in engine sensors and switches, namely the coolant and oil temperature sensors