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Oct 17, 2025
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COMETIC
SKU: 68-9633
Cometic Twin Cam Rocker Box Assembly Cover Gasket 10-Pack - Harley Twin Cam
$51.83
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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.
Keep your Twin Cam rocker box covers sealed tight with this 10-pack of Cometic gaskets. Engineered to OEM specifications, these gaskets are designed to prevent oil leaks under the demanding conditions of a V-twin engine.
Why riders pick this
- OEM-spec gasket for Twin Cam rocker covers
- Prevents oil leaks from the rocker box
- Durable construction for V-twin engines
- Bulk 10-pack for shops and spares
- Maintains engine cleanliness and integrity
A reliable seal on your rocker box covers is crucial for both engine cleanliness and proper operation. These Cometic Twin Cam rocker box assembly gaskets are manufactured to provide a precise, leak-free seal, even through thermal cycling and engine vibration. The convenient 10-pack is an excellent value for professional shops, custom builders, or riders who prefer to have essential maintenance parts readily available.
Superior Rocker Cover Sealing
- Direct OEM replacement for Twin Cam rocker box cover assemblies
- Engineered to prevent oil leakage under V-twin operating conditions
- Durable construction withstands heat and vibration
- Economical 10-pack for shops and frequent maintenance
Protect Your Engine and Ride
Oil weeping from your rocker covers is not only unsightly but can also indicate a need for new gaskets to maintain proper engine pressure and lubrication. Replacing old, worn gaskets with fresh Cometic units is a straightforward way to ensure your Twin Cam engine stays sealed and performing its best. Whether you're doing a top-end refresh or just addressing a minor leak, these gaskets offer the reliability you expect for your Harley-Davidson Twin Cam.
Specifications
- Brand: Cometic
- Manufacturer Part #: C9633
- Quantity: 10 per pack
- Weight: 0.05 lbs
Common questions
Is this gasket a direct replacement for the OEM Harley Twin Cam rocker box cover gasket?
Yes, Cometic manufactures this gasket to be a direct OEM-equivalent replacement, ensuring proper fit and sealing performance for your Twin Cam rocker box assembly.
Why are these gaskets sold in a 10-pack?
The 10-pack quantity is designed for professional service shops, riders who maintain multiple V-twin bikes, or anyone who keeps a stock of essential maintenance parts on hand.
Will this fit Indian Motorcycle Twin Cam engines?
This gasket is designed for Twin Cam rocker box assemblies. While some Indian models may share similar components, we recommend verifying compatibility with your specific Indian model before ordering.
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 | 68-9633 |
| WEIGHT | 0.05 lb |
Please contact us to confirm fitment for your specific motorcycle, or check the product title for compatibility notes.
CUSTOMER REVIEWS
4.69
16 RATINGS
5★
14
4★
1
3★
0
2★
0
1★
1
✓ VERIFIED
Jul 21, 2025
USPS damaged the gaskets
Came in USPS bent , I didn't use them and threw them in the trash after JP Cycle refunded me. I used my old ones and added gasket sealant to them.
✓ VERIFIED
Apr 18, 2025
It worked
Shipped super fast <br />Worked as it should
✓ VERIFIED
Sep 9, 2024
Great replacement gasket!
Great replacement for the OEM gasket. Fit perfectly and is a well made gasket.
✓ VERIFIED
Jun 2, 2024
packaging
The gaskets worked great, no more leaks, however the packaging could be better. The gaskets are metal and shipping them in an envelope makes for bent gaskets and crossed fingers hoping they won't leak.
✓ VERIFIED
Apr 18, 2024
When in need
A little expensive for two gaskets but worked as should
