Cometic BMW 318/Z3 89-98 86mm Bore .051 inch MLS Head Gasket M42/M44 Engine

The multi-layer steel (MLS) construction of this Cometic head gasket, featuring embossed outer layers coated with heat-resistant Viton, is designed to handle the demands of high-output engines. This gasket is built with multiple layers of stainless steel, which not only increases its strength but also allows it to rebound and resist corrosion, making it a solid choice for rebuilding or replacing the head gasket on your 1991-1998 BMW 318i, 318is, 318ti, or Z3 with an M42 or M44 engine. The compressed operating thickness is precisely 0.051 inches with an 86mm bore, ensuring a proper seal between aluminum heads and either aluminum or cast iron blocks.

Because it's constructed from multiple layers of stainless steel, this gasket offers increased strength and the ability to rebound, helping it withstand the shearing forces that can occur between different block and head materials. The outer layers are coated on both sides with Viton, a high-performance elastomer that can handle temperatures up to 482 degrees Fahrenheit (250 C), making it suitable for harsh sealing environments and various surface finishes. The center layer is uncoated stainless steel, and its thickness can be varied to meet different sealing requirements. This type of gasket doesn't require any additional sealants, simplifying the installation process.