Vertex Gaskets 04-09 Yamaha YFZ450 Valve Cover Gasket

This is a Vertex valve cover gasket for your 2004-2009 Yamaha YFZ450. Its main job is to seal the valve cover to the cylinder head, keeping oil inside the engine where it belongs and preventing leaks.

Vertex builds these gaskets using a compressed Micropore material. This stuff is chosen because it has high compressibility, meaning it can conform to the surfaces of both the valve cover and the cylinder head, even if they aren't perfectly flat. This helps create a really tight seal that holds up over time and under the heat and pressure of the engine. It's a well-built part designed to match the original equipment valve covers on your YFZ450.