FOX 36 FIT Cartridge Seal Kit 803-00-149 + RacingBros Wipers & Oil

Service bundle for selected older FOX 36 suspension forks with a compatible FIT damping cartridge. Combines FOX cartridge seal kit 803-00-149 with RacingBros dust wiper seals and oils for cartridge and lower-leg servicing.

Bundle contents

• 1 × FOX 36 cartridge seal kit, part number 803-00-149
• 1 × RacingBros dust wiper seal set for FOX 36
• Suspension oil for the compatible damping cartridge
• Lubrication oil for the lower legs

The RacingBros wipers and oils are additional items in this shop bundle, not components of the FOX 803-00-149 cartridge seal kit itself. Oil grades, supplied quantities and the exact RacingBros wiper version are not specified here; confirm these details before ordering.

Compatibility

FOX's 2008 technical documentation lists 803-00-149 as “FOX Cartridge Seal Kit, 36”. This reference identifies a FOX 36 cartridge service kit, but does not establish compatibility with every FOX 36 damper or model year.

Confirm your fork model, model year, damper version and applicable FOX service part number before purchasing. Do not assume compatibility with later FIT variants or FIT4 cartridges. The RacingBros wiper seals must also match your exact fork generation.

Service information

This bundle is intended for experienced suspension mechanics. Cartridge servicing requires appropriate tools, clean working conditions and the correct bleeding procedure. Follow the FOX service instructions for your specific fork and damper, including the specified oil grades and fill quantities. This bundle should not be assumed to contain every part needed for an air spring or TALAS system rebuild.

Service guide for older FOX 36/40 FIT cartridges

For identification notes and a link to the archived English-language FOX service instructions, read our older FOX 36/40 FIT cartridge service guide. The guide is a supplementary reference, not a complete seal replacement procedure or confirmation that this kit fits every FOX 36 or FOX 40 cartridge.

Archived service reference photos

These photos illustrate the older cartridge design shown in the archived procedure. Compare your cartridge before starting; the images do not establish compatibility with this kit.

Detail at the bladder end.

Removed piston and shaft assembly.

Cartridge assembly using a torque wrench.

Image source: FOX, “36/40 FIT Cartridge Service”, © 2008 FOX Factory Inc., via the external archive copy. Follow the complete procedure and its warnings.