Cometic C9875-014 Cylinder Base Gasket Kit 3 3/4" & 3 13/16" Bore .014" Thickness 4" Spigot

The Cometic C9875-014 is a precision-engineered cylinder base gasket kit designed specifically for Harley-Davidson Evolution Sportster engines equipped with Millennium Cylinders featuring either 3 3/4" or 3 13/16" bore sizes. This high-performance base gasket features a .014" compressed thickness and accommodates a 4.00" outer diameter spigot.

Key Features:

• Steel construction with Viton coating for superior heat and oil resistance
• Compatible with 3 3/4" and 3 13/16" bore Millennium cylinders
• .014" compressed thickness for precise deck height adjustment
• 4.00" O.D. spigot diameter specification
• Sold as a complete kit (pair) for both cylinders
• Manufactured in the USA using premium materials

Cometic gaskets utilize advanced manufacturing processes and premium materials to meet the demanding sealing requirements of high-performance V-Twin engines. The Viton-coated steel construction provides excellent resistance to oil, heat, and compression loads while maintaining a reliable seal throughout the engine's operating range.