Cometic C9880 MLS Cylinder Head Gasket Bore Thickness - 4.000 040

The Cometic C9880 is a high-performance Multi-Layer Steel (MLS) cylinder head gasket engineered for 4.000" bore S&S and TP cylinders with solid dowels. This precision gasket features a .040" compressed thickness and is designed to deliver superior sealing performance in demanding V-twin applications.

Multi-Layer Steel Construction:

• Center shim layer made from uncoated stainless steel for structural support and thickness control
• Two outer layers embossed and coated on both sides with Viton rubber for exceptional sealing in harsh environments
• LCE (Load Control Embossments) promote even torque load across the entire sealing surface
• Reduces bore distortion for improved piston ring seal and increased power output

Premium Materials and Engineering:

• Viton coating resists extreme temperatures, oil, fuel, and harsh sealing conditions
• Stainless steel construction provides durability and long-term reliability
• Engineered to accommodate various surface finishes and load conditions
• Manufactured in the USA from American-made materials

Cometic MLS head gaskets are trusted by performance builders and racers worldwide for their ability to maintain consistent sealing under extreme cylinder pressures and temperatures. The advanced embossment design ensures proper clamping force distribution while minimizing distortion of the cylinder bore for optimal piston ring sealing.