This is a high - quality gasket set designed for the upper engine of your 2004.5 - 2010 GM 6.6L Duramax. It's a complete OE gasket and seal kit that meets or exceeds OE specifications. The set includes all necessary seals and gaskets, but excludes the headgasket and head bolts. With part number HS54580A, it's a reliable choice for your engine maintenance.

Using this gasket set is straightforward. First, make sure your engine is cool before starting any work. Remove the old gaskets carefully to avoid any damage to the engine parts. Then, clean the surfaces where the new gaskets will be installed. Place the gaskets from the set in their correct positions. Be gentle to ensure a proper fit. When it comes to maintenance, it's a good idea to check the gaskets regularly for any signs of wear or leakage. If you notice any issues, replace the gaskets promptly. Also, keep the engine clean to extend the lifespan of the gaskets. Remember, this set doesn't include headgaskets or studs, so use other appropriate parts for those components.