Cometic C9970-051 Top End Gasket Kit for Harley Sportster XL1200 2004-2006

The Cometic C9970-051 is a complete EST (Extreme Sealing Technology) top end gasket kit designed specifically for Harley-Davidson XL1200 Sportster models from 2004 to 2006. This comprehensive kit includes all the necessary seals and gaskets required to rebuild the top end on both cylinders, providing a complete solution for engine rebuilds and major service work.

Key Specifications:

• Bore size: 3.50 inches
• MLS (Multi-Layer Steel) head gasket thickness: .051 inches
• Includes gaskets and seals for complete top end rebuild
• Covers both cylinders
• Engineered for XL1200 Sportster engines

Cometic's Multi-Layer Steel head gaskets feature superior sealing capabilities compared to traditional composite gaskets. The MLS design provides excellent resistance to extreme cylinder pressures and temperatures while maintaining consistent clamping loads. All gaskets are precision-manufactured in the USA to exacting standards, ensuring proper fit and reliable performance for your Sportster rebuild.