Fill Tool for Seal Screw Shocks

The FOX Factory Fill Tool for Seal Screw Shocks (MPN 803-00-894) is a precision maintenance accessory engineered for servicing FOX seal screw shock absorbers used in high-performance suspension systems. This aluminum fill tool is essential for anyone maintaining or rebuilding modern performance shocks that require fluid level adjustment and seal maintenance in the field or shop environment.

Constructed from aluminum in natural finish, this specialized tool weighs 0.72 lbs and measures 4 × 1.35 × 5.35 inches—sized for practical portability whether stored in a service kit or transported to remote maintenance locations. The purpose-built design allows technicians to safely fill or refill shock fluid reservoirs through seal screw access points without damaging internal seals or threads. Proper shock maintenance directly impacts suspension geometry, damping consistency, and overall vehicle handling stability, making correct fluid levels critical to performance and safety.

This fill tool is designed for owners and technicians who service FOX seal screw shocks on vehicles requiring periodic suspension maintenance. Off-road enthusiasts, rally competitors, and professional suspension shops depend on FOX-specific tools to maintain shock absorber systems without introducing contamination or cross-threading. The tool ensures compliance with FOX's maintenance procedures and extends shock service life through proper fluid management and seal care during refurbishment or seasonal maintenance intervals.

FOX Factory manufactures shocks for demanding applications where reliability and precise engineering are non-negotiable. Matching their suspension components with genuine FOX service tools ensures compatibility and preserves the engineering tolerances that make these shock systems perform at their intended level across variable terrain and conditions.