Cometic Porsche 997.2/991.1/991.2 A170/MA1.71/MA1.75/MA1.76/Etc. .040 105mm Bore MLX RHS Head Gasket

This is a Cometic Multi-Layer Steel (MLS) head gasket, specifically designed for the right-hand side (RHS) cylinders (4-6) of certain Porsche and Jaguar engines. It features a 105mm bore and a compressed thickness of .040 inches. MLS head gaskets are built with multiple layers of stainless steel for increased strength and resistance to corrosion, making them ideal for high-output engines and for use with both aluminum and cast iron blocks. They don't require additional sealants for proper function.

The outer layers of this gasket are embossed and coated with Viton, a heat-resistant rubber material that can handle temperatures up to 482°F (250°C). This coating is designed to perform well in tough sealing conditions and on various surface finishes. The center layer is uncoated stainless steel, and the overall thickness can be adjusted by varying this layer, which is how this gasket achieves its .040" compressed thickness.

This gasket fits a range of vehicles, including Porsche 911 models from 2009-2018, and Jaguar XK models from 1949-1961. It's a well-built component for rebuilding or repairing the top end of these specific engines.