Description
A complete gasket kit is the foundation of engine reliability—especially in Big Twin applications where sustained performance demands perfect sealing. The COMETIC C10121 eliminates the guesswork of sourcing individual gaskets by delivering OEM-quality sealing surfaces across your entire engine. Built with purpose-engineered materials for each application, this kit keeps combustion where it belongs and oil where it should stay.
Technical Specifications:
- Multi-Layer Steel head gaskets
- Steel Viton®-coated base gaskets
- Blue Viton valve stem seals
- AFM race-style exhaust gaskets
- Manufactured in USA
- Application: Big Twin engines
- MPN: C10121
- Bolt-on installation









