4.100 MLX Head Gasket 5.9L Dodge Cummins 03-08

The 4.100 MLX Head Gasket for 5.9L Dodge Cummins diesel engines (2003–2008 models) is a premium OEM-specification replacement designed for builders and mechanics who demand reliability in both high-performance and stock applications. This gasket is essential for ensuring a proper seal between the cylinder head and block, effectively managing combustion pressure and coolant flow under the extreme conditions typical of diesel engines.

Constructed with Cometic's MLX facing technology, this gasket features a multi-layer composite design that resists blow-by, thermal cycling, and the chemical effects of modern diesel fuel and coolant additives. The 4.100-inch bore diameter aligns perfectly with factory specifications, ensuring optimal compression and gasket seating across all eight cylinders. Its robust composition is engineered to withstand the sustained boost pressures found in stock and lightly turbo-enhanced 5.9L engines.

Whether you're a professional rebuilder or an owner-operator, you can trust Cometic gaskets for reliable performance in 2003-2008 Cummins applications. This gasket is ideal for those looking to rebuild after a failure, upgrade to a performance tune, or refresh a high-mileage engine, providing the durability necessary for long-term operation in demanding environments.