Polaris RZR XP Premium Transmission Bearing Upgrade Kit

Premium Transmission Bearing Upgrade Kit for the Polaris RZR XP

Replace the factory transmission bearings in your Polaris RZR XP with a complete set of premium NACHI bearings engineered for higher load ratings and longer service life. Stock bearings are a common failure point on machines running portal gear lifts, oversized tires, or aggressive riding styles — this kit eliminates that weak link with bearings built to handle the extra stress.

NACHI Bearing Quality
Every bearing in this kit is manufactured by NACHI, a global leader in precision bearing production. NACHI bearings are held to tighter tolerances than OEM units, with superior steel metallurgy and surface finish that reduce friction, heat, and wear under sustained high-load operation in the RZR XP transmission.

Complete Coverage
This kit includes every bearing needed for a full transmission rebuild on the Polaris RZR XP — input shaft, output shaft, countershaft, and differential bearings are all included. One kit covers the entire transmission so you are not chasing individual part numbers or mixing bearing brands.

Seal Kit Option
Pair this bearing kit with a matching transmission seal kit to complete the rebuild with fresh seals at every shaft exit and case joint. Replacing seals at the same time as bearings prevents oil leaks and contamination that would shorten the life of the new bearings.

Direct Replacement
Every bearing in this kit matches the factory dimensions, load ratings, and fit specifications for the Polaris RZR XP transmission. They drop directly into the original bearing bores — no welding, cutting, or drilling required.