Cometic BMW 04-UP 4.4L V8 94mm .027 inch MLS Head Gasket 545/645/745/ X5 4.4i

If you're working on the N62B44 V8 engine in your 2004-2005 BMW 745Li, 2004 545i, 645Ci, 745i, or 2004 X5 4.4i, this Multi-Layer Steel (MLS) head gasket from Cometic is built to handle the job. It's designed to provide a reliable seal between your cylinder head and engine block, which is crucial for maintaining proper compression and preventing coolant and oil leaks, especially in these higher-output V8s.

This gasket is constructed from multiple layers of stainless steel, giving it increased strength and the ability to rebound, which helps it resist corrosion and withstand the forces created when mating aluminum heads to cast iron blocks. The outer layers are coated with Viton, a heat-resistant rubber material that can handle temperatures up to 482°F (250°C), ensuring a tight seal even under demanding conditions. The center layer is stainless steel and can be varied to achieve different thicknesses, with this specific gasket set to a compressed operating thickness of 0.027 inches and a 94mm bore diameter, matching the factory specifications for your BMW.

Because it's an MLS gasket, it doesn't require any additional sealants, making installation more straightforward. This makes it a solid option for rebuilding or repairing the top end of your BMW's V8 engine.