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Description
SuperATV POLARIS RZR TRAIL 900 COMPLETE HEAVY-DUTY TRANSMISSIONFree shipping in the lower 48 states. Description: Ride with Confidence Say goodbye to your blown OEM tranny by upgrading to a SuperATV Complete Heavy Duty Transmission. We made it stronger, more reliable, and specifically for your Polaris RZR Trail 900. You get perfectly lapped gears that require no break in period, upgraded internals, and an ultra strong case. Each transmission is made to order and undergoes vigorous lab and field testing before
Free shipping in the lower 48 states.
Description:
Ride with Confidence
Say goodbye to your blown OEM tranny by upgrading to a SuperATV Complete Heavy-Duty Transmission. We made it stronger, more reliable, and specifically for your Polaris RZR Trail 900. You get perfectly lapped gears that require no break-in period, upgraded internals, and an ultra-strong case. Each transmission is made to order and undergoes vigorous lab and field testing before being shipped your way. Get ready to kiss your transmission issues goodbye and ride hard with the confidence that only SuperATV can provide.
Your Reverse Chain Just Got Stronger
We want you to enjoy all the crazy rides your heart desires, which is why we upgraded the reverse chain to be nearly twice as strong as stock. Our dual reverse chain is designed for the biggest hills and thickest mud pits. It can handle being thrown into reverse in the trickiest situations without breaking.
Upgraded Pinion and Snorkel Gears
You won’t find a tougher pinion and snorkel gear set anywhere else. Our gears are made from ultra-tough 9310 alloy steel. They’re perfectly lapped and broken in together, which ensures perfect mating and smooth, strong operation. Throw in a 300M front output shaft and you’ve got internals that beat the crap out of everything else on the market.
A Better Pinion Bearing Retainer
Our complete transmission replacement also comes with a heavy-duty pinion bearing retainer. The stock bearing retainer is one of the biggest weak spots on your OEM transmission—if it’s not strong enough, it can come apart, overheat, and explode. That’s why we made sure ours is way bigger and beefier. Your pinion gear will stay firmly in place, giving you a more reliable ride.
Top-Quality Transmission Case
These upgraded internal components are great, but they don’t amount to much if you don’t have a quality case holding it all together. Ours uses 68% more metal on the axle output and snorkel tube, and additional support ribs and gussets make it even stronger. It gives extra strength where your transmission needs it most, and those extra ribs keep everything running cool.
Want a Gear Reduction? Take Your Pick!
How does some extra torque sound? With this Polaris RZR Trail 900 transmission, you decide how much of a gear reduction you get. Choose from stock, 12.5%, 25%, and 37.5% to get the perfect amount of torque for your ride. If you’re carrying more weight or running bigger tires, that extra force will be a lifesaver—especially in mud and on rough trails.
Say goodbye to your blown OEM tranny by upgrading to a SuperATV Complete Heavy-Duty Transmission. We made it stronger, more reliable, and specifically for your Polaris RZR Trail 900. You get perfectly lapped gears that require no break-in period, upgraded internals, and an ultra-strong case. Each transmission is made to order and undergoes vigorous lab and field testing before being shipped your way. Get ready to kiss your transmission issues goodbye and ride hard with the confidence that only SuperATV can provide.
Your Reverse Chain Just Got Stronger
We want you to enjoy all the crazy rides your heart desires, which is why we upgraded the reverse chain to be nearly twice as strong as stock. Our dual reverse chain is designed for the biggest hills and thickest mud pits. It can handle being thrown into reverse in the trickiest situations without breaking.
Upgraded Pinion and Snorkel Gears
You won’t find a tougher pinion and snorkel gear set anywhere else. Our gears are made from ultra-tough 9310 alloy steel. They’re perfectly lapped and broken in together, which ensures perfect mating and smooth, strong operation. Throw in a 300M front output shaft and you’ve got internals that beat the crap out of everything else on the market.
A Better Pinion Bearing Retainer
Our complete transmission replacement also comes with a heavy-duty pinion bearing retainer. The stock bearing retainer is one of the biggest weak spots on your OEM transmission—if it’s not strong enough, it can come apart, overheat, and explode. That’s why we made sure ours is way bigger and beefier. Your pinion gear will stay firmly in place, giving you a more reliable ride.
Top-Quality Transmission Case
These upgraded internal components are great, but they don’t amount to much if you don’t have a quality case holding it all together. Ours uses 68% more metal on the axle output and snorkel tube, and additional support ribs and gussets make it even stronger. It gives extra strength where your transmission needs it most, and those extra ribs keep everything running cool.
Want a Gear Reduction? Take Your Pick!
How does some extra torque sound? With this Polaris RZR Trail 900 transmission, you decide how much of a gear reduction you get. Choose from stock, 12.5%, 25%, and 37.5% to get the perfect amount of torque for your ride. If you’re carrying more weight or running bigger tires, that extra force will be a lifesaver—especially in mud and on rough trails.
⚠ 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.
Features:
- Complete, assembled, drop-in transmission
- Built to order and thoroughly tested
- 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
- 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
- Multiple gear reductions available
- Stock gear reduction
- 12.5% gear reduction
- 25% gear reduction
- 37.5% gear reduction
Fitment:
- Polaris RZR Trail 900 : 2021+
SS | 2-1-22
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 15 reviews
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Product Reviews
★★★★★ 5
Love these socks!
The wife struggles with socks. She only like the Nike ones, then they discontinued them, so had to start the search again! Found these, they are expensive just like the Nike, but the size is true, they look great, they are super soft and stretchy. They are light weight and breathable and seem to wick away moisture. She loves these!
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Reviewed in the United States on November 18, 2025
★★★★★ 5
I stay on your foot they don’t slip in your shoe
Number of Items: 3, Color: White/Neutral (3-pairs), Size: Medium
This is the only socks I wear Under Armour because they stay in place I wear a size 8, but they’re more comfortable with a large instead of a medium, but I wear both because I have them already and you can pull them to stretch them out a little bit
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Reviewed in the United States on May 12, 2026
★★★★★ 5
Great fit, truly doesn’t slide off heel
Number of Items: 3, Color: White/Neutral (3-pairs), Size: Medium, Number of Items: 3, Color: White/Neutral (3-pairs), Size: Medium
I’ve scoured all the lands looking for a no-show sock that was 1) thin, 2) quality, soft, breathable material, 3) didn’t dig into my feet/heels, 4) doesn’t shrink, and most importantly 5) stays on the back of my heel without a bulky non-slip rubber piece and these check all the boxes! Perfect for low profile women’s work shoes like Keds, etc. Not low enough for most flats though. I wear a women’s size 9.
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Reviewed in the United States on April 19, 2025
★★★★★ 5
So good - I’m buying MORE.
Number of Items: 3, Color: White (3-pairs), Size: Medium
I’m gonna give you more detail than you need about why I’m buying these socks again.
I’ve been the mom of girl athletes. I’ve been a model and a fashion director. I’ve worn every brand of shoe on the planet and never found a shoe that did NOT find a vulnerable spot on my foot to rub raw. Even my beloved white Jack Purcell sneakers.
With that said - I don’t like socks. I’ve bought a TON of them in 35+ years.....all major brands.
They shift. They lose their shape. They get holes in them and wear out too fast. Not these.
I retired this year, and knowing I’d be in sneakers a lot, traveling, sightseeing ......
I bought these 6 months ago and have worn them constantly. I’ve traveled with them. I’ve washed them in hot water and bleach.
The socks are like brand new. They are exactly the right cut so as not to be seen in a basic sneaker. The little silicone patch on the heel stays put. Not once have I had to dig down into my shoe and pull the sock back up. The socks have stayed soft and EXACTLY the same as the day they were new.
Like I said - I am back to buy them again. Great quality!
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Reviewed in the United States on January 20, 2021
★★★★★ 5
No slip low socks
Number of Items: 3, Color: Black/White (3-pairs), Size: Medium
Perfect! ❤️ these!
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Reviewed in the United States on February 16, 2026