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Sep 10, 2023
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COMETIC
SKU: 68-9894-040
Cometic Head Gasket - .040" Twin Cam 2-Pack - Harley Twin Cam
$59.50
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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 you're wrenching on a Twin Cam, reliable sealing is non-negotiable, especially in performance applications. These Cometic head gaskets are engineered to provide that critical seal. Sold in a convenient 2-pack, they ensure you have the right components for a solid top-end assembly.
Why riders pick this
- Reliable sealing for Twin Cam V-twin engines
- Engineered with modern gasket technology
- Two gaskets included for both cylinders
- Ideal for performance engine builds
These Cometic head gaskets are designed specifically for Harley-Davidson Twin Cam engines, providing a crucial seal between the cylinder head and barrel. Manufactured using modern gasket technology, they're built to withstand the demands of high-performance V-twin builds, ensuring integrity under extreme heat and compression. Whether you're doing a routine refresh or a full performance build, don't overlook the foundation of a good seal.
Engineered for Performance
- Precision-engineered for a reliable seal on Twin Cam V-twin engines
- Modern gasket technology for high-performance applications
- Convenient 2-pack ensures you have both gaskets for a complete top end
The Right Foundation for Your Build
Choosing the correct head gasket thickness is vital for maintaining proper compression and valve clearance. This .040" thickness is a common choice for many Twin Cam setups, balancing performance and reliability. Always confirm the required thickness for your specific engine build to ensure optimal results and prevent future headaches. Pair these with fresh hardware for the best possible seal.
Specifications
- Brand: Cometic
- Manufacturer Part #: C9894-040
- Thickness: 0.040 inch
- Length: 6.05 in
- Width: 7.05 in
- Height: 0.45 in
- Weight: 0.235 lbs
- Quantity: 2 per pack
Common questions
How many gaskets are included in this pack?
This product contains two head gaskets, which is enough for one complete top-end rebuild on a Twin Cam engine.
What thickness are these head gaskets?
These Cometic head gaskets feature a .040 inch thickness, designed for Twin Cam applications. Always confirm the correct thickness for your specific engine build.
Will these gaskets fit a Milwaukee-Eight engine?
No, these specific head gaskets are engineered for Twin Cam engines only. Milwaukee-Eight (M8) engines require a different gasket specification. Please use our Shop by Bike tool to find the correct part for your M8.
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 | 68-9894-040 |
| WEIGHT | 0.24 lb |
Please contact us to confirm fitment for your specific motorcycle, or check the product title for compatibility notes.
CUSTOMER REVIEWS
4.6
15 RATINGS
5★
12
4★
2
3★
0
2★
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1★
1
✓ VERIFIED
Nov 16, 2022
I've been using cometic gaskets for a number of years. They never fail me they are a great gasket maker
✓ VERIFIED
Feb 7, 2022
Seems to be fine
✓ VERIFIED
Jul 28, 2020
Fit perfectly
✓ VERIFIED
Apr 30, 2020
Good
✓ VERIFIED
Mar 31, 2020
5 Stars
