The Gates Engine Coolant Thermostat is designed to provide reliable valve response for smooth operation and accurate engine cooling. This thermostat is factory calibrated to ensure accuracy of opening and closing, regardless of pressure changes. It features a temperature sensitive heat motor and is compatible with applications with 3/4" deep filler necks. The thermostat also includes jiggle pins and check valves for air venting, seals and gaskets, making it equivalent to the original equipment parts. With its quality-controlled factory calibration and reliable valve response, it is the perfect choice for your engine cooling needs. FleetPride is your First Click in Heavy Duty®.