SuperATV Polaris RZR 900 Complete Transmission (2015-20)

SuperATV SKU: TRAN-P-RZR900-K205
Regular price


Select OEM Part Number
Select Gear Reduction
Ready to ship - 10 left

The SuperATV Complete Transmission for the 2015-20 Polaris RZR 900 Models is better, stronger, and more reliable than the OEM Transmission for the Polaris RZR S 900. With upgraded internals and a better case, this transmission will power through the trails that made your OEM case explode. 

Store Wide Sale! Save 5% to 15% at Checkout on 1000's of products. 

RZR 900 : 2015-2020
RZR S 900 : 2015-2020
RZR 4 900 : 2016-2018

Complete, assembled, drop-in transmission
Designed to address OEM weak points
Built to order and thoroughly tested
Lapped gears ensure perfect mesh
Upgraded snorkel gear set
Pinion shaft and gears made with 9310 heavy-duty steel
Front output shaft made with 300M
2.5x stronger than stock
Lapped gears are mated perfectly for less wear and smoother operation
Eliminates a major weak spot in the transmission
Strengthens the entire drivetrain
Upgraded reverse chain
2x stronger than stock
Quieter than the competition
Upgraded transmission case
More support ribs and gussets than stock
Extra fins help keep your transmission cool
68% more metal reinforcing the snorkel tube and axle output areas
Includes all necessary seals
Includes necessary plugs and shifter shim
Multiple gear reductions available
Stock gear reduction
12.5% gear reduction
25% gear reduction
37.5% gear reduction
Does not include turf mode
Refer to your RZR 900 owner's manual for oil requirements

Upgraded Reverse Chain
SuperATV upgraded our reverse chain to make it twice as strong as stock. The double reverse chain on our tranny lets you throw it into reverse whenever you need to. It can handle thick mud and hills where your stock reverse chain would snap.

Upgraded Pinion and Snorkel Gear
SuperATV upgraded the materials on our pinion and snorkel gear set to 9310 alloy steel. That’s the same gear material used in airplanes. And the front output shaft is made with 300M—one of the strongest steel alloys you can get. Plus, their pinion and snorkel gear are lapped, meaning they’re mated and broken in together as part of the production process. This means smoother, cooler, and stronger operation.

Upgraded Pinion Bearing Retainer
SuperATV also include our heavy-duty pinion bearing retainer. Your stock bearing retainer is one of the biggest OEM weak spots. When it’s not strong enough, it lets your snorkel and pinion gear pull apart, overheat, and explode. SuperATV thicker retainer holds your pinion gear in place to prevent any explosions.

A Better Case
Better gears don’t amount to a hill o' beans if you don’t have a better case to hold it all together. SuperATV made this tranny stronger in all the right places but only added one pound of material over stock. Our snorkel tube and axle output has 68% more metal, plus additional support ribs and gussets. Those gussets and fins also help to keep your transmission cooler. SuperATV did everything they could to make this the strongest case you can get.

Choose Your Gear Reduction
Ready to bump your torque way up? Depending on your model, you can choose between stock, 12.5%, 25%, and 37.5% gear reduction for your transmission. A bigger gear reduction means more torque for adding bigger tires and carrying more weight. It also means impressive pulling power through rough trails and deep mud pits. If you're serious about playing hard in your RZR, upgrade to a bigger gear reduction.

California Proposition 65 Warning

WARNING: This product may contain a chemical known to the State of California to cause cancer or birth defects or other reproductive harm.