Cometic EST Gasket Kit - Harley Twin Cam Softail & Dyna
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 rebuilding your Twin Cam engine, the Cometic EST Gasket Kit offers a comprehensive solution for superior sealing. This kit contains every gasket, seal, washer, and O-ring needed for a complete engine overhaul, ensuring your V-twin performs reliably and stays dry.
Why riders pick this
- Complete engine overhaul gasket kit
- Extreme Sealing Technology (EST) for reliability
- MLS head gaskets for superior sealing
- Viton-coated base gaskets resist wear and heat
- Blue Viton valve stem seals included
- Designed for Harley Twin Cam Softail & Dyna
Engineered with Cometic's Extreme Sealing Technology (EST), this gasket kit is specifically designed for Harley-Davidson Twin Cam engines found in Softail and Dyna models. It utilizes advanced materials and construction to provide a robust, leak-free seal, critical for maintaining optimal compression and performance in modern V-twin powerplants.
Advanced Sealing for Twin Cam Performance
- Multi-Layer Steel (MLS) head gaskets for enhanced durability and sealing under pressure
- Steel Viton-coated base gaskets offer superior resistance to heat and chemicals
- Blue Viton valve stem seals ensure reliable sealing at the valve guides
- AFM material components contribute to the kit's comprehensive sealing capabilities
- Complete overhaul kit includes all gaskets and seals for a full engine rebuild
Rebuild with Confidence and Durability
A proper engine rebuild starts with reliable sealing, and the Cometic EST Gasket Kit delivers on that promise. By integrating advanced materials and design, this kit helps prevent common leaks and ensures that your Twin Cam engine operates at its peak. Whether you're refreshing an older motor or buttoning up a performance build, these gaskets provide the peace of mind you need for a powerful and dependable ride on your Softail or Dyna.
Specifications
- Brand: Cometic
- Manufacturer Part #: C9777F
- Length: 13.3 in
- Width: 22.9 in
- Height: 2 in
- Weight: 1.86 lbs
Common questions
What is included in this Cometic Twin Cam gasket kit?
This kit contains every gasket, seal, washer, and O-ring needed for a complete engine overhaul on your Twin Cam, including MLS head gaskets, base gaskets, and valve stem seals.
Will this gasket kit fit my specific Harley Twin Cam model?
This kit is designed for Twin Cam EST engines. Please use our Shop by Bike tool to verify compatibility with your specific Harley-Davidson Softail or Dyna model year before ordering.
Are these gaskets OEM Harley-Davidson parts?
These are high-quality aftermarket gaskets manufactured by Cometic, known for their advanced sealing technology and performance in V-Twin 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 | 68-9777 |
| WEIGHT | 1.86 lb |
