Differential Bearing Seal Kit Polaris Ranger 900 Rear Fits 2x4 500 05 09 4x4 700 05 09 Crew 08 09

This is a rear differential bearing seal kit designed specifically for Polaris Ranger models with a rear differential, delivering a complete, ready-to-install solution to stop leaks and restore drivetrain integrity. It targets the Ranger 2x4 500 (05-09), 4x4 500 (05-07), 4x4 500 EFI (06-09), 4x4 700 (05-09), 4x4 700 Crew (08-09), 4x4 900 Diesel (11-14), 4x4 900 Diesel Crew (12-14), 6x6 500 (05), 6x6 800 (10-14), as well as 900 Diesel variants and selected RZR configurations (10-14). Precise rear-diff sealing and bearing support mean fewer oil leaks, less dirt ingress, and longer service life in harsh trail and job-site conditions.

Designed to address common wear from daily use, this aftermarket replacement kit replaces worn seals and bearings, reducing gear oil leaks and minimizing differential wear. Built to endure dusty trails and demanding farm work, it provides a dependable, cost-effective alternative to OEM parts while ensuring robust protection and reliable performance on the trail or in the field.

Comprehensive Vehicle Fitment

Product Specifications

OEM & Aftermarket Cross-Reference Information

What's Included

This kit includes all the components required to properly service the rear differential and restore sealing integrity.

• 2x Rear differential seals (double‑lip)
• 2x High‑speed bearings
• 1x Pinion seal
• 1x O‑ring kit for diff cover and seals
• Installation hardware and instructions

Related parts not included: gear oil, gasket sealant for other mating surfaces, or specialized installation tools.

Why Choose This Aftermarket Replacement?

• Direct-Fit Compatibility — engineered to match the rear differential’s original geometry for seamless installation.
• OEM Cross-Reference — provides reliable cross-compatibility with Polaris OEM references while offering a cost-effective aftermarket option.
• Premium Materials — double-lip seals and precision bearings designed to stand up to dust, water intrusion, and heat in harsh work or trail conditions.
• Comprehensive Coverage — includes seals and bearings in one kit to complete a full rear-diff service without hunting for individual parts.
• Reliability Restoration — restores sealing performance to prevent oil loss and prolongs differential life in demanding environments.
• Dealer-Grade Availability — backed by a wide dealer network ensuring parts availability and easy replacements when needed.

Installation Notes:

• Drain gear oil from the rear differential and remove the differential cover to access seals and bearings.
• Inspect the gear teeth and bearing surfaces for wear; replace any scored or damaged components before reassembly.
• Clean all mating faces thoroughly; lubricate seals lightly with clean gear oil before installation to prevent twisting lips.
• Install seals squarely using a proper seal driver to avoid gouging the seal lips or outer diameter.
• Seat bearings with a press or appropriate tool to avoid shock loading; verify runout and proper preload where applicable.
• Torque rear cover bolts to OEM specifications and replace any gasket or sealant as required by the service manual.

Why Upgrade?

Running a worn or leaking rear differential seals/bearings risks continued oil loss, dirt ingress, and accelerated gear wear, which can lead to reduced power transfer, overheating, and costly, sudden drivetrain failure. This aftermarket kit restores sealing integrity and bearing support, returning the Ranger’s rear end to reliable performance and increasing the lifespan of the differential under demanding trail or farm conditions.