Cometic Evo Sportster EST Complete Motor Gasket Kit - Harley Evolution Sportster
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 it's time for a full teardown on your Evo Sportster, trust the Cometic Evo Sportster EST Gasket Kit to seal it right. This complete motor overhaul set includes everything you need for a reliable rebuild. Engineered with Extreme Sealing Technology, it ensures your V-twin performs as intended.
Why riders pick this
- Complete motor overhaul kit for Evo Sportster engines
- Features Extreme Sealing Technology (EST)
- Includes MLS head gaskets for superior cylinder sealing
- Viton-coated base gaskets and valve stem seals for durability
- Contains all necessary gaskets, seals, washers, and O-rings
This Cometic Evo Sportster EST Gasket Kit is a comprehensive solution for completely overhauling your Evolution Sportster engine. Designed with Extreme Sealing Technology (EST), this kit provides advanced materials and construction for a leak-free and durable seal. Every component from head gaskets to O-rings is included, ensuring you have the right parts on hand for a professional-grade rebuild.
Advanced Sealing Technology for Peak Performance
- MLS (Multi-Layer Steel) head gaskets for superior sealing integrity
- Steel Viton-coated base gaskets resist heat and chemicals
- Blue Viton valve stem seals provide long-lasting oil control
- AFM material gaskets offer excellent conformability and sealing
- Complete kit includes every gasket, seal, washer, and O-ring for a full motor overhaul
Rebuild with Confidence
Whether you're refreshing a high-mileage Evo Sportster or buttoning up a performance build, this Cometic EST gasket kit provides the peace of mind that comes with quality components. Its comprehensive nature means you won't be scrambling for missing pieces mid-job. Focus on precise assembly, and let Cometic's engineering handle the seal.
Specifications
- Brand: Cometic
- Manufacturer Part #: C9124
- Kit Type: Complete Motor Overhaul
- Length: 24.3 in
- Width: 13.9 in
- Height: 1.6 in
- Weight: 1.61 lbs
Common questions
What does the EST in this gasket kit signify?
EST stands for Extreme Sealing Technology, which refers to Cometic's advanced gasket design and materials, including MLS head gaskets and Viton-coated components, engineered for high-performance V-twin engines.
Is this kit suitable for a full engine rebuild?
Yes, this is a complete motor overhaul set that includes every gasket, seal, washer, and O-ring needed for a full teardown and rebuild of your Evo Sportster engine.
Will these gaskets work with my specific Evo Sportster model?
This kit is designed for Evo Sportster models. Please confirm fitment with our Shop by Bike tool to ensure compatibility with your specific year and model.
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 | 68-9124 |
| WEIGHT | 1.61 lb |
