Ford 7.3L Power Stroke .067in MLX Head Gasket

The Ford 7.3L Power Stroke .067in MLX Head Gasket by Cometic Gaskets is a multi-layer steel cylinder head gasket engineered for 1994–2003 Ford Power Stroke diesel engines. This gasket features a 4.140-inch bore and 0.067-inch compression thickness, delivering the sealing integrity required for high-compression diesel operation. Cometic's multi-layer steel construction is the industry standard for rebuilding and performance diesel applications where reliability under sustained boost pressure and elevated combustion temperatures is non-negotiable.

The 0.067-inch thickness specification is critical for the 7.3L's combustion chamber geometry and compression ratio. Multi-layer steel gaskets maintain dimensional stability across thermal cycles—essential in diesel engines where head temperature swings are severe. The gasket's bore diameter of 4.140 inches is matched precisely to the 7.3L cylinder block, preventing blow-by and coolant leakage that can compromise block integrity. This gasket is a direct replacement part (C15390-067) for stock rebuilds and turbo applications running factory boost levels.

Buyers restoring 7.3L Power Stroke heads—whether for truck operation, generator duty, or marine auxiliary diesel work—depend on Cometic's reputation for consistent gasket performance across thermal extremes. The Power Stroke's durability is legendary, but a failed head gasket can introduce coolant into the oil gallery or combustion chamber, risking catastrophic engine damage. Specifying the correct compression thickness and bore diameter eliminates guesswork and ensures the rebuild meets original equipment standards.