Valve cover gaskets need to withstand high operating temperatures, as well as freezing cold at startup, and still maintain a tight oil seal. Nearby exhaust manifolds, exhaust crossover in the cylinder heads, and EGR systems can all lead to extreme heat, which can take its toll on valve cover gaskets. In addition, they are generally the most visible and accessible gaskets on the engine, and as a result, conventional materials can often be overtorqued. Modern gasket designs incorporate compression limiters (stoppers) to prevent overtorquing.
Choosing the right gasket is essential, so it makes sense to rely on the same parts that manufacturers the world over select—Haishan Sealing valve cover gaskets.
OE or better quality for late model vehicles
Sophisticated sealing designs for extended warranties and to meet customer expectations for zero engine leakage
Engineered for the unique operating conditions of certain engines
