✓ VERIFIED
Jan 16, 2020
Almost identical to OEM. Good fit. I did miss that they are sold as each and not as a pair. Small detail and my fault but it did slow my project down a bit.
COMETIC
SKU: 68-10242-010
Cometic Milwaukee-Eight 0.010" RC Gen2 Embossing Base Gasket - Harley & Indian V-Twin
$31.55
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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.
Achieve a reliable and long-lasting seal for your Milwaukee-Eight engine rebuild with the Cometic .010" RC Gen2 Embossing base gasket. This high-performance gasket is engineered to handle the demands of your V-twin.
Why riders pick this
- Steel construction with Viton coating for durability
- Gen2 embossing technology for superior sealing
- Precise .010" RC thickness
- Resists oil degradation and maintains compression
- Direct OEM replacement for Milwaukee-Eight
This Cometic Milwaukee-Eight base gasket features a .010" RC thickness and advanced Gen2 embossing, providing a robust seal for your M8 engine. Constructed from steel with a Viton rubber coating, it offers exceptional resistance to oil degradation and maintains compression integrity across all operating conditions. This gasket is a direct OEM replacement, ensuring a precise fit and reliable performance for your Harley-Davidson or Indian Motorcycle.
Engineered for M8 Durability
- Steel construction with a protective Viton coating
- Gen2 embossing technology for enhanced sealing
- Precise .010" RC thickness for optimal fitment
- Direct OEM replacement for Milwaukee-Eight engines
Secure Your Engine's Foundation
A critical component in any engine assembly, this Cometic base gasket provides the essential seal between your cylinders and crankcase. Its durable construction and advanced sealing features are vital for both stock and performance-modified Milwaukee-Eight engines, helping to prevent leaks and maintain consistent compression. Ensure your M8 build has the strong foundation it needs for reliable power and longevity.
Specifications
- Brand: Cometic
- Manufacturer Part #: C10242-010
- Thickness: .010" RC
- Length: 8 in
- Width: 8.5 in
- Weight: 0.5 lbs
Common questions
What does "RC" mean in the gasket description?
RC stands for "rubber coated," indicating that this gasket features a Viton rubber coating. This coating provides superior sealing capabilities and enhanced resistance to oil and chemicals compared to uncoated gaskets.
Is this a full gasket kit or just the base gasket?
This product is a single base gasket only. Cometic also offers comprehensive engine gasket kits that include head gaskets, valve stem seals, and other necessary components for a full overhaul.
Will this fit all Milwaukee-Eight engines?
This gasket is designed for Milwaukee-Eight engines. Always confirm fitment with your specific year and model using our Shop by Bike tool before ordering to ensure compatibility.
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 | 68-10242-010 |
| WEIGHT | 0.5 lb |
Please contact us to confirm fitment for your specific motorcycle, or check the product title for compatibility notes.
CUSTOMER REVIEWS
4.87
15 RATINGS
5★
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✓ VERIFIED
Oct 18, 2021
Great seals and gaskets do the job once when you use quality gaskets
✓ VERIFIED
Sep 26, 2019
Seal good and I haven't had any issues..
✓ VERIFIED
Jun 27, 2025
It worked like it was suppose to, delivery was quick. <br />Pleased.
✓ VERIFIED
Dec 19, 2023
Just what I needed
Needed these when changing out intake manifold. They worked perfect for my ‘03 sporty.
✓ VERIFIED
Jun 12, 2023
Cometic from here on out
These seals are the only ones I'll use. others came close but, for me, these are best.
