RockShox Rebound Dampers and Seal Head Assemblies

Compatibility is determined by the specific model number of your fork and the damper assembly. You should verify that your fork's serial number or model year matches the specifications for part number 11.4018.025.003 before purchasing, as RockShox parts are highly specific to individual fork chassis.

This is a complete rebound damper and seal head assembly. It includes the necessary components to replace the internal damping mechanism and the seal head, so you generally do not need to purchase additional seals to complete this specific repair.

You likely need a replacement if you notice oil leaking from the bottom of the fork leg, a loss of rebound adjustment control, or if the fork feels inconsistent and 'spiky' during compression. These symptoms often indicate that the internal seals have failed or the damper assembly has worn out.

If you are comfortable performing routine suspension service and have the correct tools—such as a torque wrench, suspension oil, and the proper socket sizes—you can install this yourself. However, if you are unfamiliar with suspension internals, a professional mechanic is recommended to ensure the damper is seated correctly and the fork is bled properly.

Genuine RockShox parts are engineered to the exact tolerances of your fork's original design. Using OEM parts ensures the damping characteristics remain consistent with how the fork was intended to perform, whereas aftermarket alternatives may not offer the same fitment precision or material quality.