The Gates Engine Coolant Thermostat is a high-quality, factory-calibrated thermostat designed to provide reliable and accurate engine cooling. Constructed with heavy gauge brass and stainless steel, this thermostat is corrosion-resistant and offers superior durability. The temperature sensitive heat motor ensures reliable valve response for smooth operation and accurate engine cooling. Jiggle pins for air venting, seals and gaskets make this thermostat equivalent to the original equipment parts. With its quality-controlled factory calibration, you can be sure that the opening and closing of the thermostat is accurate regardless of pressure changes. FleetPride is your First Click in Heavy Duty®.