Valve Cover Gasket For 1998-2004 3.2L 3.5L V6 Engine Code 6VE1 6VD1 Honda Passport Acura SLX Isuzu Amigo Trooper 2 Valve cover gaskets, 6 Spark plug tube seals Be sure to have your valve cover gasket replace with aftermarket replacement valve cover gasket as soon as it starts to give you trouble. The valve cover and valve cover gasket seal the top of the engine and prevent oil leaks. If the gasket deteriorates, oil will begin to leak out. If the oil leaks out, your engine will not be properly lubricated, and serious engine damage can occur. Oil that leaks out through the valve cover gasket can also fall into the exhaust system and ignite an engine fire.