Polaris RZR 4 900 Heavy Duty Billet Front Differential Gear Case



Polaris RZR 4 900 Heavy Duty Billet Front Differential Gear Case

Why We Make It
If you want to Push your Polaris RZR 4 900 as hard as it will go, you need to upgrade to SuperATV’s Heavy Duty Billet Front Differential Gear Case. Our gear case can play as hard as your big 4-seater RZR 900 so that you can hit those big hills and those big mud holes with confidence. Switch to a GDP differential housing and experience Gear Driven Performance on your machine!

The SuperATV difference
At SuperATV, we believe in giving you the easiest and quickest installation possible so you can get back to doing what you love. That’s why our differential includes the magnet, wiring, seals, and DU bushing all installed here at the factory. Other guys make you install them yourself or worse, make you reuse your OEM magnet and seals. Good luck not damaging those. We also use a bolt on cap instead of a snap ring to retain the pinion bearing because we all know snap rings are a pain.

The Best Diff in the Biz
We were tired of cracking our gear case every time our front output shaft failed, and our loose mounting bolts were robbing performance. That's why we spared no expense to make a better diff housing. For starters, we use 6061 billet aluminum built with thicker walls than stock. The result is a diff that’s 57% stronger than OEM. We kept going and built in steel helical inserts just like those used by professional racers. These inserts reinforce the mounting threads with and unbreakable steel wire that keeps your mounting bolts from loosing and pulling out. No matter how hard you ride, no matter how hard you crash, SuperATV’s heavy duty billet front differential gear case will keep on running. And it comes with an unbeatable Lifetime Warranty!

Kit Includes:
  • 6061 Billet Aluminum Differential Housing
  • Magnet and wiring
  • DU bushing
  • All seals
  • Oil fitting and drain plugs
  • Steel helical inserts
  • All mounting hardware
  • Blue threadlocker

Gear Driven Performance by SuperATV|Portal Gear Lifts


  • Polaris RZR 4 900 : 2016
  • Polaris General 1000 : 2016-2017
  • Polaris Ranger 900 XP Highlifter : 2016
  • Polaris RZR 1000 S : 2016
  • Polaris RZR XP 1000 : 2014-2016
  • Polaris RZR XP 4 1000 : 2014-2016
For OE Differential Numbers:
  • 1333344
  • 1333112
  • 2206012
  • 1333597


  • Made of 6061 billet aluminum
  • 57% stronger than stock
  • Magnet and wiring pre-installed
  • DU bushing and seals pre-installed
  • Bolt on cap to retain the pinion bearing instead of OEM snap ring
  • Utilizes steel helical inserts to prevent mounting bolts from pulling out of housing
  • Includes all hardware and drain plugs
  • Comes with a LIFETIME WARRANTY
SuperATV provides the finest products in the market and offers a LIFETIME WARRANTY to go with them. If for any reason an product with a lifetime warranty bends, breaks, or fails we will replace it free of charge. Whether you pile it up or your buddy took it for an innocent test ride, we've got you covered.

How to make a warranty claim?
Before sending anything to SuperATV, please click below to fill out the appropriate form:



Complete the form, ensuring each field is properly filled out. Follow instructions on each page for the warranty or return process.
Customer is responsible for shipping item back to SuperATV and is responsible for tracking information. Please keep until a SuperATV team member has contacted you.