Fox Suspension Top Cap Assembly

No, this specific assembly is engineered exclusively for the 2018 36 FIT4 Factory Series models. It will not fit other years or damper configurations, so verify your fork's specific model year and damper type before purchasing.

You will need a high-quality socket or a dedicated suspension top cap tool that matches the specific hex size of the cap to prevent rounding the edges. It is also recommended to use a torque wrench to ensure you tighten it to the manufacturer's exact specification.

Yes, this is a complete top cap assembly designed to replace the existing unit, meaning it comes with the necessary seals to maintain the air spring or damper integrity. Always inspect the threads on your fork stanchion for damage before installing the new cap.

Replacement is typically necessary if the original cap has been damaged by improper tool use, if the threads have become stripped, or if the integrated seals have worn out and are causing air or oil leaks. If your fork is losing pressure or leaking fluid from the top, this assembly is a common fix.