Dayco Thermostat DT21A Highflow SAE 75W-90

SAE 75W-90

Conventional style thermostat with jiggle pin

Special design conventional style thermostat with pressure relief hole

quieter braking

mineral automotive gear oil manufactured with modern extreme pressure additives and friction modifiers meeting the requirements of API GL-5/6 and MT-1

Dayco Thermostat DT21A Highflow SAE 75W-90Dayco thermostats are designed to OEM specifications and come with a heat sensing wax filled copper power pill that detects the coolant temperature in the engine. The Dayco thermostat's amazing heat sensing power pill controls coolant flow from the radiator when the engine is cold to reach optimum operating temperature quickly. It then allows coolant to circulate through the engine when operating temperature is reached to create the perfect