Cometic C10266 EST Complete Gasket Kit - 4.250" Big Bore Milwaukee-Eight with .040" MLS Head Gasket

The Cometic C10266 EST Complete Gasket Kit is engineered specifically for 2017 and newer Harley-Davidson Touring and Trike models with Milwaukee-Eight engines using 4.250-inch big bore cylinders. This comprehensive kit includes everything needed for a complete engine rebuild, featuring a .040-inch Multi-Layer Steel (MLS) head gasket along with all necessary engine, primary, derby cover, and inspection cover gaskets.

EST (Extreme Sealing Technology) Features:

• Multi-Layer Steel (MLS) head gaskets for superior sealing under high compression and extreme temperatures
• SPS (Spring Steel) gaskets with Viton coating for critical sealing surfaces including rocker boxes and cylinder bases
• Viton-coated base gaskets for enhanced durability and heat resistance
• Premium valve stem seals to prevent oil consumption
• AFM (Aluminum Foam Material) race-style exhaust gaskets
• High-quality O-rings and seals throughout

Cometic EST gasket kits use application-specific materials designed to create the optimal seal for each surface, ensuring your engine remains leak-free. Compatible with both air-cooled and Twin-Cooled Milwaukee-Eight engines. This is the same gasket set supplied with professional big bore kits for 124-128 cubic inch applications.