Differential Bearing Seal Kit Rear Fits Honda TRX500 FA FE FM IRS Solid Axle 2014 to 2018

This is a rear differential bearing seal kit designed for the TRX500 ATV family. It restores oil containment by replacing worn seals and bearing supports, reducing leaks and eliminating play in the rear drivetrain. Compatible with TRX500FA (2015-2018), TRX500FE (2014-2018), TRX500FM IRS (2015-2018), and TRX500FM Solid Axle (2014-2018), this kit helps you regain smooth power transfer and reliability in muddy trails or busy farm days.

Why this aftermarket replacement stands out: it bundles the essential components to address common wear—grease loss from failed seals, bearing roughness, and contaminant intrusion—into a single, drop-in kit. Built for trail and farm use, it delivers consistent sealing and bearing support, minimizing downtime and protecting the rear end from costly damage.

Comprehensive Vehicle Fitment

Product Specifications

OEM & Aftermarket Cross-Reference Information

What's Included

This kit includes the essential components to service the TRX500 rear differential:

• 3 x sealed ball bearings
• 3 x seals
• 2 x circlips
• 1 x O-ring
• 1 x needle bearing

Note: Contents may vary slightly by exact TRX500 model and year. Related drivetrain gaskets or external components are not included unless listed above.

Why Choose This Aftermarket Replacement?

• Direct-Fit Compatibility: Precisely matched to TRX500 rear differential geometry to minimize installation time and ensure correct operation.
• OEM Cross-Reference: Clear cross-reference options help you source quickly if you’re comparing to OEM or other aftermarket lines.
• Premium Materials: Robust bearings and elastomer seals designed to withstand dirt, water exposure, and heat generated by hard use.
• Comprehensive Kit: All essential components in one package to rebuild the rear differential without hunting for separate parts.
• Performance Restoration: Restores proper sealing and bearing support, reducing noise, leaks, and premature wear under trail and farm conditions.
• Cost‑Effective Reliability: Helps you avoid downtime and expensive repairs by addressing the root causes of differential failures.

Installation Notes:

• Prepare the workspace: Safely raise and support the machine, drain the rear differential oil, and remove the diff cover to access the bearings and seals.
• Clean and inspect: Thoroughly clean the housing bore, inspect for scoring or pitting on the bearing journals, and replace any worn mating components.
• Seal & bearing removal: Use proper pullers/presses to remove old seals and bearings; avoid hammering or misalignment which can damage the bore.
• Orientation and lubrication: Install seals with the lip facing the oil side and lightly lubricate seals and bearings with clean gear oil prior to seating.
• Pressing bearings: Use even pressure and correct tooling to seat bearings flush without distorting the race or housing.
• Reassembly & fill: Reassemble the differential, torque all access fasteners to OEM specs where applicable, and refill with the correct gear oil level for the model.

Why Upgrade?

Running a worn or failed rear-diff seal and bearing kit can lead to progressive oil loss, contaminant ingress, and accelerated gear wear. Upgrading to this aftermarket kit restores proper lubrication and bearing support, which helps prevent costly differential damage and keeps you moving reliably on the trail or across the farm.