Cometic Milwaukee-Eight Head Gaskets 4.095" Bore .030" MLS - Harley Milwaukee-Eight
About Cometic
Cometic Gasket manufactures multi-layer steel head gaskets and complete gasket kits in Concord, Ohio. On a built V-twin running higher compression or a big-bore kit, the MLS head gasket is what keeps the top end sealed — which is why Cometic is the default spec on so many engine builds.
These Cometic Milwaukee-Eight head gaskets are engineered specifically for high-performance V-twin applications. With a .030" multi-layer steel (MLS) construction, they are designed to seal to a 4.095" bore, effectively handling the power and heat cycles of modern M8 engines.
Why riders pick this
- Multi-Layer Steel (MLS) construction
- .030" thickness for precise compression
- 4.095" bore diameter for Milwaukee-Eight
- Withstands high heat and pressure
- Prevents leaks and maintains compression
- Essential for performance engine builds
When upgrading or rebuilding your Milwaukee-Eight engine, the integrity of your head gaskets is paramount. Cometic's MLS head gaskets are the industry standard for performance, providing a robust and reliable seal under the most extreme conditions. Their multi-layer steel construction ensures consistent clamping force and superior heat dissipation, critical for maintaining engine compression and preventing leaks.
Uncompromising Sealing for M8 Performance
- Multi-layer steel (MLS) construction for ultimate sealing integrity
- .030" thickness optimized for various engine setups
- 4.095" bore diameter for precise fitment on Milwaukee-Eight cylinders
- Precision-engineered to withstand high pressures and temperatures
- Essential for performance builds and reliable engine operation
Confidence in Every Rev
Don't compromise on critical engine components. These Cometic head gaskets are a must-have for any Milwaukee-Eight build, whether you're chasing every last horsepower or simply demand the best for your V-twin. Their advanced design prevents hot spots and ensures an even seal, contributing to both engine longevity and peak performance. Always replace head gaskets during any engine disassembly to maintain optimal sealing and prevent costly issues down the road.
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
Common questions
What does 'MLS' mean in relation to these gaskets?
MLS stands for Multi-Layer Steel. MLS gaskets are constructed from multiple layers of steel, which provides superior sealing capabilities, durability, and resistance to heat and pressure compared to traditional single-layer gaskets, especially in high-performance engines.
Are these head gaskets sold individually or as a pair?
This product refers to a pair of head gaskets, suitable for a complete top-end rebuild on your Milwaukee-Eight V-twin engine.
Do I need to replace head gaskets every time I disassemble my engine?
Yes, it is highly recommended to always replace head gaskets during any engine disassembly or rebuild. Reusing old head gaskets can lead to compromised sealing, leaks, and potential engine damage.
Ordering from Vtwinbikers
- Brand new, sourced through authorized US distribution — never used, never grey-market.
- Not sure it fits? Use Shop by Bike to filter by your year and model, or email us and we will confirm before you order.
- Harley-Davidson and Indian Motorcycle is all we do, so you are talking to people who ride what you ride.
| BRAND | Cometic |
| TYPE | Gaskets/Seals |
| SKU | 68-10166-030 |
| WEIGHT | 0.35 lb |
