As a hesitant automotive buyer Im always skeptical of replacement parts .However, this gasket exceeded my expectations. As a result of my tests, i determined that it is able to withstand HIGH levels of pressure and heat. The installation was easy, and my truck is now running smoothly. The only con is that it could have been packaged better, as the edges were slightly bent upon arrival. Overall, I highly recommend this gasket for anyone in need of a reliable replacement part..See full review