Cometic C5021-65UR ATI 7in Damper O-Ring Rebuild Kit 3-Ring Design 65-Durometer Urethane

The Cometic C5021-65UR is an ATI Super Damper O-Ring Rebuild Kit designed for 7-inch ATI harmonic dampers using a 3-ring configuration. This kit provides a complete solution for restoring the sealing performance of your ATI Super Damper, replacing the elastomer O-rings that degrade over time due to heat cycles, oil exposure, and general wear.

This kit features 65-durometer urethane O-rings, a softer compound compared to standard 70-durometer offerings, making it well-suited for applications where a more compliant elastomer is preferred. The urethane (UR) material provides good resistance to petroleum-based fluids and moderate heat, making it appropriate for street and mild performance applications.

Key Features:

• 3-Ring Design — covers the outer, inner, and face O-ring positions on the ATI 7-inch damper shell
• 65-Durometer Urethane O-Rings — softer, more compliant compound for specific application requirements
• Designed for ATI 7-Inch Super Dampers — direct-fit replacement O-ring kit for proper seal restoration
• Cometic Quality — manufactured to meet the sealing demands of high-performance engines
• Restores damper function by replacing worn or degraded elastomer O-rings

Cometic Gasket is a trusted manufacturer of precision sealing components for performance and racing applications. This rebuild kit allows you to service your existing ATI Super Damper rather than replacing the entire unit, making it a cost-effective maintenance solution for race teams and performance enthusiasts.