Ensuring you are Ready for the Road Ahead , the Dorman Valve Cover Gasket Kit ensures durability under extreme under hood conditions. This valve cover gasket creates a tight, leak-proof seal between the engine valve cover and the cylinder head. This prevents oil from escaping and leaking out onto other engine components or the ground. Dorman has a distinguished reputation in the heavy duty truck and trailer aftermarket, manufacturing a variety of parts for a complete repair. Through advanced engineering, Dorman successfully checks into today’s most common failures to figure out the why, ultimately delivering modern solutions that not only match OEM parts, but solve known issues. FleetPride is your First Click in Heavy Duty .