FoxPiston Shaft (9mm, 9.5 x 3.0") is a precision replacement piston/damper shaft for Fox rear shocks, intended for full damper service when the original shaft is worn, bent, or damaged.
Replacing the shaft restores proper sealing and piston alignment inside the damper, helping the shock deliver consistent damping, smoother travel, and more predictable performance on repeated hits—especially important after contamination, crash damage, or high-hour use.
Genuine Fox Damper Service Part - Direct-fit replacement to keep a Fox rear shock performing to spec after a rebuild
9mm Shaft Diameter - Matches the intended damper architecture for correct bushing support and seal function
9.5 x 3.0" Size - Ensures the damper’s internal travel and assembly stack-up stay correct when servicing the shock
Rebuild-Ready Replacement - Ideal when the original shaft shows scoring, corrosion, or bending that can accelerate seal wear and compromise damping consistency
Identifiers
UPC
821973523101
MPN
803-04-553
Tree Fort ID:
333222477739
Have Experience With This?
or
Customer Questions
not logged-in log-in to receive an emailed response