1984-1999 Harley-Davidson Softail®, Dyna® Clutch Derby Cover O-Ring - Rubber

This rubber derby cover o-ring provides a precision-engineered seal for the primary drive, preventing fluid leaks and protecting the clutch assembly from contaminants. The high-quality rubber construction is designed for optimal flexibility and chemical resistance, ensuring it maintains a tight seal against the heat and vibration of the Evolution Big Twin engine. This direct-fit replacement component is essential for routine primary service to ensure the long-term reliability and cleanliness of your motorcycle’s powertrain.

This derby o-ring fits 1984-1999 Harley-Davidson Touring, Softail, and Dyna models with Evolution Big Twin and Twin Cam 88 engines.