Cometic Milwaukee 8 Head Gaskets - M8 PR 4.075" .030"mls Gasket Bore 4.095" — Harley-Davidson (2018-2019)

Cometic Milwaukee-Eight head gaskets engineered for high-performance V-twin applications. These .030" multi-layer steel (MLS) gaskets seal to a 4.095" bore and are designed to handle modern M8 engine power and heat cycles.

Features

• Multi-layer steel (MLS) construction
• .030" thickness
• 4.095" bore diameter
• Precision-engineered for Milwaukee-Eight engines

Specifications

• Brand: Cometic
• Manufacturer Part #: C10166-030
• Thickness: .030" MLS
• Bore Diameter: 4.095"
• Length: 8 in
• Width: 8.5 in
• Weight: 0.35 lbs

Fitment

Fits Milwaukee-Eight (M8) V-twin engines in Harley-Davidson and Indian Motorcycle models.

Frequently Asked Questions

What engine does this gasket fit?

Milwaukee-Eight (M8) V-twin engines used in Harley-Davidson and Indian Motorcycles.

What does MLS mean?

Multi-layer steel. MLS gaskets offer superior sealing and durability compared to single-layer designs, especially under high boost or heat.

Do I need new gaskets every rebuild?

Yes — head gaskets should always be replaced during engine disassembly. Reusing gaskets risks coolant and oil leaks.

Is this a complete gasket set or just the head gasket?

This is the head gasket only. A complete gasket kit would include additional seals (valve cover, base, etc.).