✓ VERIFIED
May 16, 2026
not what I needed. description wasn't very clear but not worth sending back. oh well just have to be more careful next time
COMETIC
SKU: 68-9846F
Cometic Evo Big Twin EST Complete Gasket Kit - Harley Evolution Big Twin
$353.56
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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.
When rebuilding your Evo Big Twin, a complete and reliable gasket kit is fundamental to achieving a strong, leak-free engine. The Cometic Evo Big Twin EST Gasket Kit provides every gasket, seal, washer, and o-ring required for a comprehensive engine overhaul.
Why riders pick this
- Complete engine overhaul kit for Evo Big Twin
- Features MLS head gaskets for superior sealing
- Steel Viton-coated base gaskets for durability
- Blue Viton valve stem seals included
- All gaskets, seals, washers, and o-rings provided
This Cometic Evo Big Twin EST gasket kit is specifically engineered for Harley-Davidson Evo Big Twin motors, ensuring a precise fit and optimal sealing. It features Multi-Layer Steel (MLS) head gaskets, steel Viton-coated base gaskets, and blue Viton valve stem seals, all designed for reliable performance under demanding conditions.
High-Performance Sealing for Your Evo Big Twin
- MLS head gaskets provide superior sealing and durability for high-performance applications
- Steel Viton-coated base gaskets resist extreme temperatures and chemical degradation
- Blue Viton valve stem seals ensure consistent oil control and prevent leaks
- AFM material components are included for robust and precise sealing throughout the engine
- Complete kit covers all gaskets and seals needed for a full engine overhaul
Build with Confidence
A successful engine rebuild hinges on the quality of its sealing components. This Cometic gasket kit gives you the confidence to tackle your Evo Big Twin project, knowing that every critical seal is of the highest standard. Prevent leaks and maintain optimal engine performance by choosing Cometic for your Harley-Davidson Evolution Big Twin overhaul.
Specifications
- Brand: Cometic
- Manufacturer Part #: C9846F
- OEM Part #: 17041-92-A
- Weight: 4.5592 lbs
Common questions
What is included in this Evo Big Twin gasket kit?
This complete kit provides every gasket, seal, washer, and o-ring needed for a full engine overhaul on Evo Big Twin motors, including MLS head gaskets, Viton-coated base gaskets, and AFM components.
Will this kit fit my Harley-Davidson Evo Big Twin?
Yes, this Cometic Evo Big Twin EST gasket kit is designed for Harley-Davidson Evo Big Twin engines. We recommend using our Shop by Bike tool to confirm exact fitment for your specific model and year.
Does this kit include head gaskets?
Yes, the MLS head gaskets are included as part of this complete overhaul kit, ensuring you have all the necessary components for a full engine rebuild.
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 | 68-9846F |
| WEIGHT | 4.56 lb |
Please contact us to confirm fitment for your specific motorcycle, or check the product title for compatibility notes.
CUSTOMER REVIEWS
4.36
14 RATINGS
5★
11
4★
0
3★
1
2★
1
1★
1
✓ VERIFIED
Mar 8, 2026
Gasket
Working fine was for my brother's bike
✓ VERIFIED
Oct 25, 2024
Works Fine at a lower cost
I usually have an OEM from Harley Davidson, I have used this twice on my 04 Electraglide, no leaks or issues. At a much lower price.
✓ VERIFIED
Jun 8, 2024
A mediocre gasket
I didn’t use this gasket after removing the derby and seeing the Harley gasket that I removed. No comparison in quality. I ended up going to the local dealer and bought an O.E. gasket.
✓ VERIFIED
Jun 6, 2023
A good buy
The gasket fit nicely and no leaks so far . The fitment was spot on .
✓ VERIFIED
May 4, 2023
There is nothing on them indicating they are actually Cometic gaskets. Are they Substitutes?
