Great fit.
Cometic Evolution O-Ring 10-Pack - Harley Evolution V-Twin
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 precise sealing within your Evolution V-twin engine with this 10-pack of Cometic O-rings. These OEM-spec replacement seals are engineered to maintain compression and prevent fluid leakage at critical interfaces.
Why riders pick this
- 10-pack for service and spares
- OEM-spec replacement for reliable sealing
- Designed for Evolution V-twin engines
- Prevents fluid leakage at critical points
Proper sealing is paramount for the performance and longevity of any V-twin engine. This 10-pack of Cometic O-rings provides a reliable solution for various sealing points within your Evolution engine, from oil passages to critical component interfaces. Manufactured to exacting OEM specifications, these O-rings offer a direct fit and durable performance, resisting degradation from heat and engine fluids.
Precision Sealing for Evo Engines
- Convenient 10-pack for service and spares
- Engineered to OEM replacement specifications
- Designed for Evolution V-twin engine applications
- Maintains vital compression and prevents leaks
Essential for Engine Integrity
Whether you're performing routine maintenance, chasing down a leak, or undertaking a full engine rebuild, having a supply of fresh O-rings is crucial. This 10-pack ensures you're prepared for any task, providing the confidence that your Evolution engine will remain sealed and perform as intended. Trust Cometic for the quality seals your V-twin demands.
Specifications
- Brand: Cometic
- Manufacturer Part #: C9485
- Quantity: 10 per pack
- Weight: 0.01 lbs
Common questions
Why are these sold in a 10-pack?
The 10-pack quantity is designed for professional shops, owners who service multiple bikes, or riders who keep spares on hand for future maintenance needs.
Will this work on my specific Evo model?
This O-ring fits V-twin Evolution engines. It's always best to verify the OEM part number on your bike matches the specifications before ordering to ensure correct fitment.
Is this an OEM Cometic part or aftermarket?
Cometic manufactures this O-ring to OEM specifications, providing a high-quality aftermarket direct replacement for factory seals.
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 | 68-9485 |
| WEIGHT | 0.01 lb |
5 Stars
I ordered an extra O-ring for Crank shaft position sensor "just-in case". Part matches.