This Grade A headgasket is a perfect fit for your 2001 - 2010 GM 6.6L Duramax engine. It's a direct replacement that meets or exceeds OE standards, trusted by technicians worldwide. Mahle crafted this gasket with multi - layered steel for durability. It's the left - side gasket (right - side part number is 54583), and the part number for this one is 54580.

Using this headgasket is straightforward. First, make sure your engine is cool and clean before installation. Remove the old gasket carefully, clean the mating surfaces of the engine block and cylinder head to get rid of any debris or old gasket material. Then, place the new gasket in position, aligning it correctly. When tightening the bolts, follow the manufacturer's torque specifications to avoid any issues. As for maintenance, keep an eye on your engine's performance. If you notice any signs of leakage, such as coolant or oil seepage, check the gasket right away. And remember, this is a high - quality part, but proper installation is key to its long - term performance.