✓ VERIFIED
Aug 14, 2023
Great fit, good quality material
COMETIC
SKU: 68-9281
Cometic Evolution Big Twin Rocker Box Cover Gasket 5-Pack - Harley Evolution Big Twin
$38.61
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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.
This Cometic rocker box cover gasket is specifically engineered for Evolution Big Twin engines, providing a reliable and leak-free seal under demanding conditions. Available in a convenient 5-pack, it’s an essential component for any rider or shop focused on meticulous engine maintenance.
Why riders pick this
- OEM-spec rocker box cover gasket
- For Evolution Big Twin engines
- 5-pack quantity for service and spares
- Prevents oil leaks from rocker boxes
- Direct replacement for stock parts
Preventing oil leaks from your rocker box covers is fundamental to maintaining engine cleanliness and optimal performance on your Evolution Big Twin. Cometic offers a high-quality, direct OEM replacement gasket designed to withstand the heat and pressure of V-twin operation, ensuring a lasting seal.
Engineered for Lasting Sealing
- Direct OEM replacement for Evolution Big Twin rocker box covers
- Designed for consistent sealing under engine heat and pressure
- Convenient 5-pack quantity for multiple services or stocking spares
- Helps prevent oil seepage and maintain engine integrity
Critical for Engine Health
Whether you're performing routine service, addressing an oil leak, or undertaking a full engine build, a fresh rocker box gasket is vital. This Cometic 5-pack provides the reliable sealing needed for your Evolution Big Twin, ensuring your engine runs clean and performs at its peak, without the worry of drips.
Specifications
- Brand: Cometic
- Manufacturer Part #: C9281
- OEM Reference #: 17355-84A
- Quantity: 5 per pack
- Weight: 0.16 lbs
Common questions
How many gaskets are included in this pack?
This product contains five gaskets per pack, which is suitable for shops, riders with multiple bikes, or for those who prefer to keep spares on hand for future service.
Will this gasket fit Twin Cam or Milwaukee-Eight engines?
No, this gasket is specifically designed for Evolution Big Twin engines. Twin Cam and Milwaukee-Eight engines require different part numbers for their rocker box covers. Please confirm fitment for your specific year and model using our Shop by Bike tool.
Is this an OEM Harley-Davidson gasket or an aftermarket replacement?
Cometic manufactures this as an OEM-equivalent replacement gasket, precisely engineered to the specifications of Harley-Davidson part number 17355-84A for Evolution engines.
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 | 68-9281 |
| WEIGHT | 0.16 lb |
Please contact us to confirm fitment for your specific motorcycle, or check the product title for compatibility notes.
CUSTOMER REVIEWS
4.96
26 RATINGS
5★
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✓ VERIFIED
Jun 9, 2020
Perfect
✓ VERIFIED
Jun 1, 2020
Good gasket.
✓ VERIFIED
Apr 1, 2020
Quality gaskets with affordable prices
✓ VERIFIED
Jan 28, 2020
Fits a 1947 74-inch FL.
✓ VERIFIED
Sep 27, 2019
good stuff at a great price!
