Cometic 01-06 GM 6.6L Duramax Diesel 4.100 inch Bore .040 inch MLS RHS Head Gasket

Cometic Gasket has a solid reputation for making well-built engine components, and this Multi-Layer Steel (MLS) head gasket is a prime example. If you're working on a GM 6.6L Duramax diesel from 2001-2016, like a Silverado 2500 HD or GMC Sierra 3500, this gasket is designed to seal the combustion chamber effectively. It's built to handle the high output these engines are known for, and it's specifically for the right side of the engine.

What makes these MLS gaskets stand out is their construction. They use multiple layers of stainless steel, which gives them strength and helps them resist corrosion. The outer layers are coated with Viton, a heat-resistant rubber material that can handle tough sealing jobs and different surface finishes. This means you don't need to use any extra sealants; the gasket does the work on its own, whether you're mating aluminum heads to aluminum blocks or aluminum to cast iron. The center layer is stainless steel and can be varied to achieve the exact thickness needed, and this particular gasket has a compressed operating thickness of 0.040 inches with a 4.100-inch bore.

This gasket is a solid option for rebuilding or repairing your Duramax engine. It's designed to provide reliable sealing for a range of GM trucks and SUVs, including models like the Chevrolet Express 2500 and GMC Savana 3500.