Thermostat/Water Outlet Gasket

The thermostat gasket seals the thermostat housing to keep coolant from leaking. Like all gaskets, it can wear out over time. If you notice coolant leaking, temperature fluctuations, or overheating, check your thermostat gasket for any damage. It may also be necessary to check other cooling components, such as the radiator, water pump, and hoses to determine the source of the leak. Low coolant levels can cause overheating, and an overheating engine may result in a blown head gasket, warped cylinder heads, or a cracked engine block, and should be repaired right away. At O'Reilly Auto Parts, we carry thermostat gaskets and related cooling system parts to keep your engine running at its best.