Cometic Head Gasket 4.250" Bore Twin Cam - Harley Twin Cam
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, a reliable head gasket is non-negotiable. These Cometic head gaskets are engineered to provide a consistent seal across the 4.250-inch bore, crucial for maintaining compression and preventing leaks in high-performance V-Twin applications. Sold in a two-pack, you'll have both gaskets needed to get your heads back on and sealed tight.
Why riders pick this
- Designed for 4.250-inch bore Twin Cam motors
- Ensures consistent sealing for high-performance builds
- Supplied as a 2-pack for complete head service
- Built with modern, durable gasket materials
When you're wrenching on a Twin Cam, a reliable head gasket is non-negotiable. These Cometic head gaskets are engineered to provide a consistent seal across the 4.250-inch bore, crucial for maintaining compression and preventing leaks in high-performance V-Twin applications. Sold in a two-pack, you'll have both gaskets needed to get your heads back on and sealed tight.
Engineered for Performance and Durability
- Designed for 4.250-inch bore Twin Cam engines
- Ensures consistent sealing under demanding conditions
- Supplied as a 2-pack for complete cylinder head service
- Built with modern gasket materials for longevity
The Foundation of a Solid Build
Whether you're doing a top-end refresh or a full build, the quality of your head gaskets directly impacts engine reliability. These Cometic gaskets are a smart choice for any Twin Cam owner looking for a dependable seal. Pair them with fresh head bolts for optimal clamping force and peace of mind on the road.
Specifications
- Brand: Cometic
- Manufacturer Part #: C9076-040
- Quantity: 2 per pack
- Bore Diameter: 4.250 in
- Length: 6.05 in
- Width: 7 in
- Height: 0.3 in
- Weight: 0.08 lbs
Common questions
Why is this head gasket sold in a 2-pack?
Twin Cam engines feature two cylinder heads, so this pack provides both head gaskets required for a complete top-end job or engine rebuild.
Will this gasket fit my specific Harley-Davidson model?
This gasket is designed for Twin Cam engines with a 4.250-inch bore. Please verify your engine's bore size before ordering to ensure proper compatibility.
Is it necessary to use new head bolts with these gaskets?
It is highly recommended to use new head bolts during installation. New fasteners ensure the proper clamping load for an optimal seal and long-term integrity.
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 | 68-9076-040 |
| WEIGHT | 0.08 lb |
