Thermostat Housing Gasket (Paper / Flat) Any time you replace the thermostat or remove the housing, you should replace the gasket to avoid future leaks. This gasket is a paper gasket that offers an excellent seal for your thermostat housing...

Thermostat Housing Gasket (Round Rubber) Any time you replace the thermostat or remove the housing, you should replace the gasket to avoid future leaks. This gasket is a round rubber O-ring gasket that offers the best possible seal for your thermostat...

T-stat Housing Adapter O-Ring (Offenhauser Manifolds) If you are running an Offenhauser intake manifold you are most likely using our thermostat housing adapter with a late style water neck. The adapter has its own O-ring (other than the one around the...