Cometic C9689-049 HD EVO Stock Bore Head Gasket MLS - 3.500 2-Pack 049

The Cometic C9689-049 is a premium Multi-Layer Steel (MLS) head gasket set designed specifically for Harley-Davidson Evolution engines with stock 3.500-inch bore. This 2-pack includes gaskets with a compressed thickness of .049 inches, providing reliable sealing for high-performance and stock applications.

Key Features:

• Multi-Layer Steel (MLS-5) construction for superior durability and heat resistance
• Stock bore diameter of 3.500 inches for Evolution Big Twin engines
• Compressed gasket thickness of .049 inches (.049" compressed)
• Includes 2 head gaskets per package
• Engineered to handle extreme cylinder pressures and temperatures
• Eliminates gasket failure and coolant leaks with proven MLS technology

Cometic MLS head gaskets feature multiple layers of stainless steel with advanced polymer coatings that create a superior seal under extreme conditions. The flexible design allows the gasket to adapt to minor surface imperfections while maintaining consistent clamping pressure across the entire sealing surface. Ideal for stock rebuilds, performance upgrades, and racing applications on Evolution-era Harley-Davidson motorcycles.