Rear Diff Complete for Honda TRX500 Foreman (05-11) is a purpose-built aftermarket replacement that restores the heart of your four-wheel-drive’s drivetrain. Designed to fit Honda TRX500 FM/FE models through 2011 and TRX500 FA models through 2014, this complete rear final-drive assembly brings back smooth torque transfer and reliable gearing after wear or damage. Replacing the failed or worn OEM unit 41300-HP0-B80 keeps the wheels driving in sync and reduces the risk of catastrophic differential failure on trail or worksite.

As an aftermarket replacement, this unit emphasizes direct-fit accuracy, durable construction, and cost-effective reliability for demanding trail and farm use. It’s built to satisfy the same performance characteristics as the original, with careful attention to mounting points and seal interfaces, and it’s designed to work with the vehicle’s existing seals and housings when installed properly. For owners who need a dependable restore-to-original capability without OEM-price premium, this rear differential completes the job with confidence.

Comprehensive Vehicle Fitment

Product Specifications

Source data: OEM cross references and dimensions are documented in aftermarket cross-reference lists and product detail pages for TRX500 Foreman rear differentials, including listings showing 41300-HP0-B80 and related cross numbers, plus physical dimensions for the complete unit.

OEM & Aftermarket Cross-Reference Information

Cross-reference notes pulled from dedicated aftermarket listings and cross-reference databases indicating OEM part numbers and their compatibility across the TRX500 Foreman family.

What's Included

This listing includes the essential component you need to restore drive in your TRX500 Foreman. The box contains:

• 1x Complete Rear Final Drive Differential Gear

Note: OEM seals must be reused from your existing unit; seals are not guaranteed to be included with this aftermarket replacement.

Why Choose This Aftermarket Replacement?

• Direct-Fit Compatibility designed to align with the Honda TRX500 Foreman mounting points and seal interfaces, minimizing installation guesswork.
• OEM Cross-Reference Assurance cross-references align with 41300-HP0-B80 and related OEM numbers to ensure accurate replacement compatibility.
• Premium Materials aluminum housing paired with robust gear components engineered for off-road and farm-duty torque transfer.
• Performance Restoration restores smooth final-drive operation, tightening backlash and eliminating gear noise associated with worn diffs.
• Cost-Effective Alternative delivers reliable, factory-level performance at a fraction of OEM price, helping you budget for the rest of the repair.
• Practical Maintenance Fit compatible with your existing seals and housings when installed by a qualified technician, reducing downtime and part waste.

Installation Notes:

• Drain the differential oil and prepare to support the rear assembly before removal.
• Carefully disconnect the drive shaft and axle connections, noting alignment for reassembly.
• Inspect all mounting bolts and studs; replace any damaged fasteners and apply proper thread locker where specified by service guidelines.
• When installing, reuse OEM seals from the removed unit; ensure mating surfaces are clean and free of debris to prevent leaks.
• Gradually fill the differential with the recommended gear oil to the correct level after assembly; check for leaks once the system is pressurized.
• Test the drivetrain at low speed before returning to full-duty use to confirm smooth operation and proper gear engagement.

Why Upgrade?

Running a worn or failed rear differential on a TRX500 Foreman can lead to unpredictable power delivery, grinding noises, and potential …drivetrain failure in tough terrain. Replacing with this aftermarket rear diff restores reliable torque transfer, reduces vibration, and protects the drivetrain from further damage, giving you dependable performance on trails and in the field.