OUSIMY Front Differential Assembly for Polaris Ranger RZR 570 800 900 1000 2011-2023 | OE 1337133

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Regular price $359.99
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At OUSIMY, we stand behind the quality and reliability of our automotive parts.

All products include a 3-Year Limited Warranty.

The warranty covers:
• Manufacturing defects
• Product quality issues
• Failures under normal use conditions


If you experience any product issue, please contact our support team. We will provide assistance including troubleshooting, replacement, or other solutions.

Warranty does not cover:
• Incorrect installation
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OE Part Number: 1337133
Specification Details
Condition New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is applicable). Packaging should be the same as what is found in a retail store, unless the item was packaged by the manufacturer in non-retail packaging, such as an unprinted box or plastic bag. See the seller's listing for full details. 
Compatible Make For Polaris
Fits ATV/UTV
Color as shows
Interchange Part Number replace 1333104,1333750,1333285 1332842
Compatible Year 2013, 2014
Country of Origin China
Brand OUSIMY
Compatible Model For Ranger / RZR / ACE
OE/OEM Part Number replace 1333750 1333104 1334309 1332842
Manufacturer Warranty 3 Years
Manufacturer Part Number 1333104, 1333750, 1333285, 1332842, diff-1-001-k
UPC Does not apply
This heavy-duty front differential assembly serves as a direct OEM replacement drivetrain component built for Polaris Ranger and RZR series UTVs spanning model years 2011 through 2023, delivering reliable power distribution to the front wheels for off-road traction and stable four-wheel drive operation.
Constructed with high-strength cast iron housing, precision ground internal ring and pinion gears, heat-treated spider gears and multi-layer oil resistant sealing gaskets, this differential unit mounts directly to the front drivetrain of compatible Polaris off-road vehicles. Every mounting hole, shaft spline and bolt pattern matches factory OEM specifications perfectly, requiring no cutting, welding or custom modification to complete installation across all listed model trims and production years.

We reinforce the gear tooth surface hardness and upgrade the integrated seal system compared to stock factory differentials. The enhanced sealing structure greatly prevents gear oil leakage during muddy, rocky and high-load off-road use, reducing premature gear wear and drastically extending the service life of the front drivetrain assembly. The unit comes fully pre-filled with gear lubricant and pre-tested before packaging, eliminating tedious fluid filling and gear backlash adjustment steps to simplify installation for professional mechanics and UTV owners performing DIY repairs.
This replacement front differential resolves common chronic issues that plague aging Polaris Ranger and RZR front drivetrains, including loud grinding and whining noises during acceleration and four-wheel drive engagement, persistent gear oil seepage from the differential housing, difficulty locking into 4WD mode while traversing uneven terrain, excessive play in the front axle connection, and catastrophic gear failure that leaves the vehicle unable to engage front wheel drive and forces frequent costly component replacements.

It clears diagnostic trouble codes related to front axle drive system malfunctions and differential torque lock errors when scanned with standard UTV diagnostic tools.
Complimentary free standard shipping is available for all orders shipped within the contiguous United States. All in-stock items will be dispatched within 1 business day following payment confirmation, shipped directly from our domestic warehouse to shorten transit time with full end-to-end package tracking access.

Every OUSIMY front differential assembly is backed by a 2-year limited manufacturer warranty against material and production defects. Installation procedures align with official Polaris service manual guidelines, and basic hand tools are sufficient for experienced off-road vehicle enthusiasts to finish the swap independently and avoid expensive dealership service labor fees.
Full Compatible Vehicle List:

Polaris Ranger 570 2011-2023

Polaris Ranger 800 2011-2023

Polaris Ranger 900 2011-2023

Polaris Ranger 1000 2011-2023

Polaris RZR 570 2011-2023

Polaris RZR 800 2011-2023

Polaris RZR 900 2011-2023

Polaris RZR 1000 2011-2023