2006-2015 IS250 Base Includes Gasket/Seal, Includes Thermostat, Temperature 180. 2010-2015 IS250 C Includes Gasket/Seal, Includes Thermostat, Temperature 180. 2014-2015 IS250 (submodel: C F Sport, F Sport) Includes Gasket/Seal, Includes Thermostat, Temperature 180.