Cometic C9970 EST Top End Gasket Kit for Harley-Davidson Sportster 1200 Evolution

The Cometic C9970 EST (Extreme Sealing Technology) Top End Gasket Kit is engineered specifically for Harley-Davidson Sportster 1200 Evolution engines with a 3.500" bore. This comprehensive kit includes embossed stainless steel head, base, and rocker gaskets covered with a proprietary rubber material designed for superior sealing performance.

Key Features:

• EST (Extreme Sealing Technology) construction with embossed stainless steel gaskets
• Proprietary rubber coating that draws heat away from the combustion ring
• Heat is dissipated evenly across the gasket surface to eliminate hot spots and prevent gasket failure
• Reinforced gasket materials including armor-clad, graphite, and galvanized steel compounds
• MLS (Multi-Layer Steel) head gasket with .040" thickness for optimal sealing
• Complete kit contains all necessary gaskets, seals, and O-rings to rebuild the top end from cylinder base upward
• Designed for sealing irregular surfaces with exceptional reliability

This kit fits Harley-Davidson XL1200C Sportster 1200 Custom (2004-2005), XL1200L Sportster 1200 Low (2006), and XL1200R Sportster 1200 Roadster (2004-2006) models. Cometic gaskets are manufactured to order and deliver professional-grade sealing performance for demanding motorcycle applications.