Cometic Primary Gasket For Harley M8 Softail Complete your primary service with a fresh gasket from Cometic. Features: Manufactured from premium fuel-resistant materials that will not creep, crack or become brittle Gaskets available in multiple types to best suit the intended application Multi-Layer Steel (Mls) gasket features two outer Viton-coated embossed spring steel layers with an inner steel layer to provide additional support Aluminum Foamette Material (Afm) gasket features an aluminum core and a chemically blown, compounded nitrile synthetic rubber coating that is bonded to the outside layer Made in the USA