Jetuplusllc 39mm Fork Seal Rebuild Kit for Harley Sportster & Dyna — Full Seal and Bushing Set

Jetuplusllc 39mm Fork Seal Rebuild Kit is a complete replacement set designed to restore fork sealing and reduce leaks on Harley Sportster (1988–2015) and Dyna (FXD, 1991–2005) motorcycles.

When fork legs leak or feel spongy, damaged seals and worn components are often the cause. This rebuild kit contains the parts needed to service both fork legs, using durable materials to extend service life and bring back consistent damping and fork travel. It's a straightforward, cost-effective alternative to replacing entire fork assemblies.

How will this kit stop fork leaks and improve ride feel?

The kit replaces the wear items that let oil escape and let dirt in: seals, bushings, and any required washers or retainers shown. New seals restore the oil barrier and new bushings reduce play between the stanchion and slider, returning proper damping and steering feedback. You get predictable compression and rebound again once the forks are rebuilt and filled to spec.

• Complete seal set sized for 39mm forks — fits both legs
• Precision-molded sealing lips to resist oil seepage
• Replacement bushings to reduce stanchion-to-slider wear
• All small hardware included as shown for a full rebuild

Which Harley models and years are compatible with the kit?

This Jetuplusllc kit is engineered for Harley-Davidson 39mm front forks. It covers Sportster models from 1988 through 2015 and Dyna (FXD) models from 1991 through 2005. Always confirm your fork tube diameter is 39mm and compare part number 495607 to your service manual to ensure fit.

• Sportster series (1988–2015) with 39mm fork tubes
• Dyna (FXD) models (1991–2005) using 39mm forks
• Manufacturer part number: 495607 for cross-reference
• Not intended for non-39mm or non-Harley forks

What’s included and what tools or parts will you still need?

The box contains all internal seal components required to rebuild both fork legs as depicted. You will still need basic fork service tools such as a spring compressor or fork clamp, torque wrench, drain pan, and the correct fork oil for your model. Inspect forks and stanchions for scoring—severely damaged tubes may require replacement or machining beyond this kit.

• Seal rings, dust seals, bushings and retaining parts for both legs
• Manufacturer warranty: 1 year from Jetuplusllc
• Recommended additional items: fork oil, shop rags, fork assembly tools
• Check stanchion surface; polish or replace if heavily scored

How durable is the kit and what service life can I expect?

Parts in this kit are made from higher-grade materials intended to resist wear and maintain sealing performance longer than low-quality alternatives. Actual service life depends on riding conditions, maintenance habits, and stanchion condition. Regular inspection and keeping fork exteriors clean will prolong seal life.

• High-quality materials selected for longer seal life
• Service life varies with use, typically measured in seasons or tens of thousands of miles
• Proper installation and fork oil levels maximize longevity
• Replace promptly if you notice fresh oil on fork lowers

Who is this for: This rebuild kit is aimed at Harley owners and independent mechanics who want a complete, OEM-style solution for leaking or worn 39mm forks on Sportster and Dyna models. It's suitable for DIY riders with basic mechanical skills and the right tools, plus shops that service classic and modern Harley front ends and prefer a reliable, single-part-number rebuild option.