Cometic C9877 MLS Head Gasket 4 Inch Bore 0.025 Inch

The Cometic C9877 is a high-performance Multi-Layer Steel (MLS) head gasket engineered for 4-inch bore S&S and TP Evolution engines. This precision-manufactured gasket features advanced sealing technology designed to withstand the extreme demands of high-performance motorcycle applications.

Multi-Layer Steel Construction:

• Three-layer design with an uncoated stainless steel center shim layer that can be varied to accommodate different thickness requirements
• Outer layers are embossed and coated on both sides with Viton to meet the demands of harsh sealing environments, varying load conditions, and different surface finishes
• Load Control Embossments (LCE) promote even torque load distribution across the gasket sealing surface
• Reduces bore distortion for improved piston ring seal and increased power output

Specifications:

• Bore Size: 4.000 inches
• Gasket Thickness: 0.025 inches
• Material: Multi-Layer Steel with Viton coating
• Unit of Measure: Sold as pair (quantity of 2 recommended per engine)

Cometic gaskets are manufactured using quality materials developed for maximum performance tolerances and long-term reliability. This MLS head gasket is ideal for both stock rebuilds and high-performance applications where superior sealing and durability are essential.