C9855F EST motor gasket kit

This Cometic EST motor gasket kit is the definitive solution for a full engine overhaul, sold as a set that includes every seal, o-ring, and gasket required for the job—including the primary gaskets. Designed specifically to fit 1991–2003 XL1200 Sportsters and all Buell models, this kit features Cometic’s Extreme Sealing Technology. You get .030" thick Multi-Layer Steel head gaskets that eliminate the need for dowel pin o-rings, alongside .020" Single-Layer Steel base and rocker cover gaskets coated in high-temperature Viton. These materials are engineered not to weep, tear, or become brittle over time. The kit also includes high-flow exhaust gaskets and Viton valve seals with outer springs to ensure a perfect seal during reassembly.