The HU905W is a direct-fit replacement front and rear hub assembly engineered for the Polaris RZR 900, RZR 4 900, and General 1000 models. Designed to restore proper wheel mounting and drivetrain function, this hub is built to OEM specifications for a straightforward, direct-fit installation.
Key Features:
- Direct OEM Replacement – Engineered to replace Polaris OEM part numbers 5139978-458 and 5139177-458 with exact fit and function
- Front & Rear Application – Fits both front and rear hub positions for versatile replacement
- Direct Fit Installation – Designed to bolt directly into place with no modifications required
- Restored Wheel Function – Delivers proper wheel mounting and reliable power transfer for consistent traction and performance
- Durable Construction – Built to withstand the high-stress demands of high-performance UTV use including impacts, vibration, and heavy loads
- Reliable Performance – Restores proper hub function for dependable operation on and off the trail
Replaces OEM Part Numbers:
| OEM Part Number | Brand |
|---|---|
| 5139978-458 | Polaris |
| 5139177-458 | Polaris |
Fitment:
| Make | Model | Year Range |
|---|---|---|
| Polaris | RZR 900 50/55/60 Inch | 2015–2017 |
| Polaris | RZR 4 900 | 2015–2017 |
| Polaris | General 1000 | 2016–2017 |
