High Elastic Rubber Valve Cover Gasket 1942852 Oil Resistant Anti Aging For Diesel Engine Product Description This valve cover gasket is a key rubber sealing part for heavy duty commercial diesel truck engines. It is made of high elastic oil resistant rubber material, placed between valve cover and cylinder head to form tight seal. It stops engine oil leaking out from the joint and prevents dust and impurities entering into valve chamber. It can endure repeated temperature