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Oct 17, 2025
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COMETIC
SKU: 68-9577
Cometic Twin Cam Rocker Box Cover Gasket 10-Pack - Harley Twin Cam
$104.48
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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.
Ensure a perfect seal on your Twin Cam rocker box cover with this Cometic gasket 10-pack. Designed as a direct replacement for factory sealing, these gaskets are engineered for V-twin engines to perform reliably under demanding conditions. This bulk 10-pack is an excellent choice for service shops or riders who maintain multiple motorcycles.
Why riders pick this
- Seals Twin Cam rocker box covers
- Direct OEM replacement gasket
- Engineered for V-twin performance engines
- Generous 10-pack for shops or spares
A leaking rocker box cover is more than just an eyesore; it can lead to oil loss and a messy engine. This 10-pack of Cometic rocker box cover gaskets provides the high-quality seals needed to keep your Twin Cam engine buttoned up tight. Each gasket is manufactured to precise OEM specifications, ensuring a perfect fit and dependable performance on your Harley-Davidson or Indian Motorcycle.
Reliable Sealing for Twin Cam Top Ends
- Direct OEM-replacement for Twin Cam rocker box cover sealing
- Engineered for the demands of V-twin performance engines
- Prevents oil leaks from the rocker box cover
- Convenient 10-pack for shops and multi-bike owners
Stock Up for Consistent Performance
For any rider or shop regularly servicing Twin Cam V-twins, having a supply of quality rocker box cover gaskets is essential. This Cometic 10-pack ensures you're always prepared for routine maintenance or engine work, helping you maintain a clean and well-sealed top end. Invest in reliable gaskets to keep your Harley-Davidson or Indian Motorcycle performing at its best.
Specifications
- Brand: Cometic
- Manufacturer Part #: C9577
- UPC: 191070004798
- Length: 8.55 in
- Width: 8 in
- Height: 0.5 in
- Weight: 0.3 lbs
- Quantity: 10 per pack
Common questions
Is this pack quantity intended for single-bike service or shops?
The 10-pack quantity is ideal for professional shops, multi-bike fleets, or riders who prefer to stock spares for recurring service intervals.
Will this gasket fit my Harley Twin Cam engine?
Yes, this gasket is specifically designed for Harley Twin Cam rocker box assemblies. If you are unsure, please confirm your engine type before ordering.
What is the recommended storage for unused gaskets?
Cometic gaskets maintain their sealing properties indefinitely when stored in a cool, dry place away from direct sunlight and extreme temperatures.
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 | 68-9577 |
| WEIGHT | 0.3 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
