Cometic GM LB7/LLY/LBZ/LMM/LGH/LML Duramax .084in MLS Cylinder Head Gasket - 4.100in Bore - RHS

This product is a Cometic Multi-Layer Steel (MLS) head gasket designed for GM Duramax engines. You get one gasket with a 4.100-inch bore and a compressed thickness of 0.098 inches, built to handle the demands of high-output applications. It's constructed from multiple layers of stainless steel, with the outer layers coated in Viton, a heat-resistant rubber material. This construction helps ensure a strong seal between aluminum and cast iron engine components, resisting corrosion and shearing forces.

The multi-layer design gives these gaskets increased strength and the ability to rebound, making them a solid option for rebuilding or repairing your Duramax engine. The Viton coating on the outer layers is designed to perform well in harsh sealing environments and can handle high temperatures up to 482 degrees Fahrenheit. The center layer is uncoated stainless steel, allowing for precise thickness control. These gaskets are made to seal effectively without needing additional sealants.

This gasket fits a wide range of GM trucks and vans, including models like the Chevrolet Express 2500 and GMC Sierra 2500 HD. It's a well-built component intended for engines that require a reliable seal under demanding conditions.