✓ VERIFIED
Dec 27, 2021
reasonable price, good quality, good fit. All good.
COMETIC
SKU: 68-10177-020
Cometic Milwaukee-Eight Base Gaskets .020" Thick - Harley Milwaukee-Eight
$31.55
Free shipping on orders $99+ · Best value guarantee
affirm
From $2.62/mo with Affirm.
See if you prequalify
IN STOCK
— Ships within 24 hours
Free Shipping on orders $99+
Best Value Guarantee
30-Day Returns — see policy
Authorized Dealer — sourced direct
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.
Cometic Milwaukee-Eight base gaskets are engineered to handle the demanding power levels of today's performance V-twin engines. These .020" thick gaskets provide a reliable seal at the engine base, crucial for maintaining optimal compression and preventing leaks on your M8-equipped Harley or Indian motorcycle.
Why riders pick this
- Engineered specifically for Milwaukee-Eight V-twin engines
- Advanced materials for high-performance M8 builds
- Provides a reliable, leak-free seal at the engine base
- Precision .020 inch thickness for optimal fitment
When you're building a Milwaukee-Eight engine, every component matters. Cometic base gaskets are designed with advanced materials and manufacturing processes to ensure a precise fit and long-lasting seal. Whether you're doing a routine rebuild or pushing the limits with a high-horsepower setup, these gaskets offer the confidence you need.
Engineered for M8 Performance
- Specifically designed for Milwaukee-Eight (M8) V-twin engines
- Advanced gasket materials handle demanding power levels
- Precision .020 inch thickness ensures proper sealing
- Reliable performance for stock and modified engines
Installation and Reliability
Proper sealing at the engine's base is critical for the longevity and performance of your Milwaukee-Eight. These Cometic base gaskets are a direct replacement, providing OEM-level fitment with enhanced durability. Pair them with other Cometic sealing products for a complete, leak-free engine assembly, giving you peace of mind on every ride.
Specifications
- Brand: Cometic
- Manufacturer Part #: C10177-020
- Thickness: 0.020 inch
- Length: 8 in
- Width: 8.5 in
- Height: 0.25 in
- Weight: 0.15 lbs
Common questions
Will these gaskets fit my Milwaukee-Eight engine?
Yes, these gaskets are designed specifically for all Milwaukee-Eight (M8) V-twin engines found in Harley-Davidson and Indian Motorcycle models.
What is the thickness of these base gaskets?
These Cometic base gaskets feature a .020 inch thickness, engineered for proper M8 base sealing.
Do I need any other gaskets for a complete engine rebuild?
These are base gaskets only. For a complete engine rebuild, you would typically need head gaskets, rocker cover gaskets, and other seals. Cometic offers full M8 gasket kits if you need a comprehensive solution.
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 | 68-10177-020 |
| WEIGHT | 0.15 lb |
Please contact us to confirm fitment for your specific motorcycle, or check the product title for compatibility notes.
CUSTOMER REVIEWS
5
4 RATINGS
5★
4
4★
0
3★
0
2★
0
1★
0
✓ VERIFIED
Jun 26, 2019
didn't use, but looks good
✓ VERIFIED
Oct 25, 2013
No sealant needed.
✓ VERIFIED
Jan 17, 2013
Gasket fit was spot on, function was very good
