Cometic C4128-056 MLS Cylinder Head Gasket for Jaguar - 4.2L XK6

The Cometic C4128-056 is a multi-layer steel (MLS) cylinder head gasket engineered specifically for Jaguar XK6 engines from 1973-1992. This precision gasket features a 0.056-inch compressed thickness and a 3.670-inch bore diameter, designed to provide superior sealing performance for the legendary 4.2-liter inline-six engine.

Key Features:

• Multi-layer steel construction for maximum durability and heat resistance
• 0.056-inch (1.42mm) compressed thickness for proper compression ratio
• 3.670-inch bore diameter engineered for XK6 engine specifications
• Superior sealing performance compared to traditional composite gaskets
• Accommodates minor surface imperfections while maintaining excellent sealing
• Designed to handle high cylinder pressures and temperatures

Cometic's MLS gaskets feature multiple layers of stainless steel with elastomeric coatings that adapt to cylinder head and block surfaces during installation. This design provides exceptional combustion sealing while allowing the gasket to move with the engine's thermal expansion and contraction cycles, reducing the risk of gasket failure.

Application: Jaguar 4.2L XK6 inline-six engines (1973-1992 model years)