Engine Gaskets: The gasket helps prevent oil leakage and the entry of other harmful materials. Advanced manufacturing technology ensures durability and optimum operation. Specialized designs yield significant and noticeable improvements to your car engine. Engineered and manufactured specifically for aftermarket repairs or "do it yourself" projects. The installation of gaskets must be just right-not too tight and not too loose, to ensure efficiency. Applications: 2005-2009 Buick Allure 3.8L 3800CC 231CID V6 OHV 2005-2006 Buick LaCrosse 3.8L 3800CC 231CID V6 OHV 1996-2005 Buick LeSabre 3.8L 3800CC 231CID V6 OHV .