Cometic C9690-036 MLS Cylinder Head Gasket 3.625" Bore 0.030" Thick Harley-Davidson EVO

The Cometic C9690-036 is a premium Multi-Layer Steel (MLS) cylinder head gasket designed for Harley-Davidson Evolution Big Twin and Sportster engines with big bore configurations. This gasket features a 3.625-inch bore diameter and 0.030-inch compressed thickness, making it ideal for performance applications requiring precise sealing.

Advanced MLS Construction:

• Multi-layer stainless steel construction with uncoated center shim layer for adjustable thickness requirements
• Outer layers embossed and coated on both sides with Viton rubber material for superior sealing
• Load Control Embossments (LCE) promote even torque distribution across the gasket surface
• Stainless steel provides increased strength, excellent rebound characteristics, and corrosion resistance
• Viton coating is heat resistant up to 482°F (250°C)

Performance Benefits:

• Reduces bore distortion for improved piston ring seal and increased power output
• Engineered to meet the demands of harsh sealing environments and varying load conditions
• Compatible with aluminum heads, aluminum blocks, and cast iron blocks
• Premium fuel-resistant materials that will not creep, crack, or become brittle
• Made in the USA

This gasket set is sold as a pair and is designed for use on 1984-1999 Big Twin and 1984-2016 Sportster models with big bore cylinder configurations. Cometic gaskets are engineered to withstand today's high-performance standards and provide long-term reliability.