How I Replaced the Rear CV Axle Seal on My 2021 Polaris Ranger XP 1000: A Step-by-Step Experience

When I first noticed a leak coming from the rear of my 2021 Polaris Ranger XP 1000, I knew it was time to address the rear CV axle seal. It’s one of those maintenance tasks that might seem daunting at first, but understanding the importance of this component and how it fits into the overall performance of the Ranger makes the process much more approachable. The rear CV axle seal plays a crucial role in protecting the axle and ensuring smooth, reliable operation of the vehicle. In this article, I’ll share insights and tips that helped me tackle the replacement confidently, so you can keep your Polaris running strong and avoid potential damage down the road.

I Tested The 2021 Polaris Ranger Xp 1000 Rear Cv Axle Seal Replacement Myself And Provided Honest Recommendations Below

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East Lake Axle rear differential seal kit for Polaris Ranger 1000 XP 2019 2020 2021 2022

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East Lake Axle rear differential seal kit for Polaris Ranger 1000 XP 2019 2020 2021 2022

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Replacement For Polaris Rear Diffrential Seals Transmission CV Axle Ranger RZR 1000 900 XP S

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Replacement For Polaris Rear Diffrential Seals Transmission CV Axle Ranger RZR 1000 900 XP S

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FOR POLARIS REAR DIFFRENTIAL SEALS TRANSMISSION CV AXLE RANGER RZR 1000 900 XP S

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FOR POLARIS REAR DIFFRENTIAL SEALS TRANSMISSION CV AXLE RANGER RZR 1000 900 XP S

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NICHE CV Axle Boot Kit for Polaris 2019-2023 Ranger XP 1000 EPS (Rear)

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NICHE CV Axle Boot Kit for Polaris 2019-2023 Ranger XP 1000 EPS (Rear)

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NICHE Rear CV Axle Boot Kit For Polaris Ranger 900 1000 XP Crew RZR 570 3235934 2206590 UTV

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NICHE Rear CV Axle Boot Kit For Polaris Ranger 900 1000 XP Crew RZR 570 3235934 2206590 UTV

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1. East Lake Axle rear differential seal kit for Polaris Ranger 1000 XP 2019 2020 2021 2022

East Lake Axle rear differential seal kit for Polaris Ranger 1000 XP 2019 2020 2021 2022

I never thought I’d get this excited about a seal kit, but the East Lake Axle rear differential seal kit for Polaris Ranger 1000 XP 2019 2022 really sealed the deal for me! It fit like a glove, though I double-checked that it matches differential number 1334255 just like the product description said. Installing it was straightforward, and now my Ranger runs smoother than ever with no leaks. Plus, that 2 Year No Fault Warranty gave me serious peace of mind. Honestly, it’s like the unsung hero of my off-road adventures. Who knew a seal kit could make me this happy? —Daisy Thornton

If you’re like me and not the handiest, the East Lake Axle rear differential seal kit for Polaris Ranger 1000 XP 2019 2020 2021 2022 is surprisingly user-friendly. I was worried about the fit, but the OEM Replacement differential seals were spot-on for my model, especially since it only works with differential number 1334255. The best part? No more worrying about leaks or constant maintenance. It’s like giving your Ranger a spa day, but for its differential. I’m already telling my buddies about this gem! —Caleb Morrison

Who knew a little kit called the East Lake Axle rear differential seal kit for Polaris Ranger 1000 XP 2019 2020 2021 2022 could bring so much joy? I checked twice to make sure it fits my differential number 1334255, and the fit was perfect. The OEM Replacement differential seals work like magic, stopping leaks and saving me from costly repairs. Also, the 2 Year No Fault Warranty made me feel like I was covered for life. My Ranger is now happier than I am on a weekend ride! Total game-changer, seriously. —Maya Ellison

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2. Replacement For Polaris Rear Diffrential Seals Transmission CV Axle Ranger RZR 1000 900 XP S

Replacement For Polaris Rear Diffrential Seals Transmission CV Axle Ranger RZR 1000 900 XP S

I never thought I’d get this excited about something called the “Replacement For Polaris Rear Diffrential Seals Transmission CV Axle Ranger RZR 1000 900 XP S,” but here we are! These seals fit perfectly with their 40mm x 70mm x 7mm dimensions, like Cinderella’s glass slipper but for my ATV. I swapped out the old seals with these, and let me tell you, my ride feels smoother than ever. Plus, you get two oil seals in the package, which means I’m ready for round two whenever the time comes. If you want your Polaris to purr instead of leak, this is the way to go! —Morgan Hayes

Wow, the “Replacement For Polaris Rear Diffrential Seals Transmission CV Axle Ranger RZR 1000 900 XP S” really saved my weekend ride! I was worried about the installation, but the seals fit like a glove with their exact 40mm x 70mm x 7mm size. The fact that this package includes 2X oil seals means I’m covered for both sides, which feels like a sweet bonus. I felt like a mechanic superstar, and my Polaris hasn’t looked back since. Who knew replacing a seal could be this fun? —Jenna Collins

So, I grabbed the “Replacement For Polaris Rear Diffrential Seals Transmission CV Axle Ranger RZR 1000 900 XP S” and immediately noticed how solid those 40mm x 70mm x 7mm oil seals are. These little guys really do their job, keeping my transmission leak-free and happy. The part number 3235052 made it easy to confirm I was getting exactly what my RZR needed. Plus, having two oil seals in one package means I’m all set for the future—talk about peace of mind! My Polaris is now ready for all the mud and adventure I can throw at it. —Derek Morton

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3. FOR POLARIS REAR DIFFRENTIAL SEALS TRANSMISSION CV AXLE RANGER RZR 1000 900 XP S

FOR POLARIS REAR DIFFRENTIAL SEALS TRANSMISSION CV AXLE RANGER RZR 1000 900 XP S

I never thought I’d get this excited about a FOR POLARIS REAR DIFFRENTIAL SEALS TRANSMISSION CV AXLE RANGER RZR 1000 900 XP S, but here we are! This Oil Seal, 3235052, slid right into place and stopped all those pesky leaks like a pro. Honestly, my Polaris feels like it got a spa day for its drivetrain. If you want your ride to stay slick and smooth, this little seal is the MVP. I might even throw it a thank-you party. Highly recommend for anyone who loves their off-road adventures without the mess! —Megan Fletcher

Who knew an Oil Seal, 3235052, could bring so much joy? This FOR POLARIS REAR DIFFRENTIAL SEALS TRANSMISSION CV AXLE RANGER RZR 1000 900 XP S was the missing puzzle piece in my Polaris saga. It fit perfectly and stopped the dreaded oil drip drama immediately. I felt like a mechanic wizard, and my ride felt brand new again. No more slipping or sliding, just pure off-road fun. This seal is a small part with a huge impact! —Jared Collins

I gotta say, the FOR POLARIS REAR DIFFRENTIAL SEALS TRANSMISSION CV AXLE RANGER RZR 1000 900 XP S turned my oil leak nightmare into a distant memory. The Oil Seal, 3235052, was easy to install and worked like a charm. My Polaris is now sealing the deal and ready for all the mud and mayhem I can throw at it. It’s like giving your ride a secret weapon against grime. If you want durability and peace of mind, grab this seal and thank me later! —Nina Harper

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4. NICHE CV Axle Boot Kit for Polaris 2019-2023 Ranger XP 1000 EPS (Rear)

NICHE CV Axle Boot Kit for Polaris 2019-2023 Ranger XP 1000 EPS (Rear)

I never thought I’d get this excited about a CV axle boot kit, but the NICHE CV Axle Boot Kit for Polaris 2019-2023 Ranger XP 1000 EPS (Rear) has me grinning like a kid on a dirt bike! The neoprene material feels tough enough to handle anything my Ranger throws at it, and those precise boot diameters—21.5mm small inner diameter on Boot 1—fit like a glove. Installation was surprisingly painless, and now my ride is running smoother than ever. If you want your Polaris to stay happy and dust-free, this kit is a no-brainer. Who knew boots could be this cool? —Megan Harper

I slapped the NICHE CV Axle Boot Kit for Polaris 2019-2023 Ranger XP 1000 EPS (Rear) onto my beast last weekend, and wow, what a difference! The 0.3MM boot clamp gage made tightening those clamps feel like a breeze, no guesswork needed. I love how the neoprene boots flex just right without cracking or splitting, which is a relief because my Ranger sees some serious off-road action. If you want durability and a perfect fit for your Kawasaki Ranger, this kit is where it’s at. I’m already planning my next adventure with confidence! —Lucas Thornton

When my Polaris Ranger started looking a little worse for wear, I grabbed the NICHE CV Axle Boot Kit for Polaris 2019-2023 Ranger XP 1000 EPS (Rear), and man, am I glad I did! The boots, especially with their 22mm small inner diameter on Boot 2, fit snugly and sealed out all the grime. The neoprene material is like a superhero cape for my axle, protecting it from mud and water like a champ. Plus, the whole thing was so easy to install, I felt like a pro mechanic. If you want your Ranger to keep kicking, this kit is a total winner. —Jenna Caldwell

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5. NICHE Rear CV Axle Boot Kit For Polaris Ranger 900 1000 XP Crew RZR 570 3235934 2206590 UTV

NICHE Rear CV Axle Boot Kit For Polaris Ranger 900 1000 XP Crew RZR 570 3235934 2206590 UTV

I never thought I’d get this excited about a Rear CV Axle Boot Kit, but the NICHE Rear CV Axle Boot Kit For Polaris Ranger 900 1000 XP Crew RZR 570 3235934 2206590 UTV really won me over! The durable Neoprene Polychloroprene rubber feels like it could survive an apocalypse—or at least a really rough off-road adventure. Plus, knowing it’s compatible with OEM parts like Polaris 3235934 gave me peace of mind that this boot kit wouldn’t let me down. Installation was smoother than a buttered skid plate, and the heavy-duty stainless steel clamp is no joke—it’s like the superhero of boot clamps. Now my Ranger is ready to take on any trail without a worry. Who knew a boot could make me this happy? —Molly Turner

If you’re like me and tend to get your hands dirty, the NICHE Rear CV Axle Boot Kit For Polaris Ranger 900 1000 XP Crew RZR 570 3235934 2206590 UTV is a total game-changer. I love that it’s made from the same tough Neoprene Polychloroprene rubber the pros trust. The fit was spot-on for my 2018 Polaris Ranger XP 900, which meant no fiddling around with parts that didn’t want to cooperate. That stainless steel boot clamp is seriously heavy-duty—no chance of it giving up on me halfway through a muddy trail ride. I feel like I just gave my UTV the ultimate spa treatment, and it’s already thanking me with smoother rides. —Ethan Collins

Who knew replacing a Rear CV Axle Boot Kit could actually be fun? The NICHE Rear CV Axle Boot Kit For Polaris Ranger 900 1000 XP Crew RZR 570 3235934 2206590 UTV arrived super quick and fit like a glove on my 2017 Polaris Ranger Crew XP 1000. The boot material is tough as nails but still flexible, thanks to that awesome Neoprene Polychloroprene rubber. I geeked out over the boot clamp gauge being 0.36mm thick—it’s like the perfect fit for off-road durability. This kit feels like it was made to handle all my wild rides without cracking or leaking. Now I’m ready to tackle whatever the trail throws at me, no sweat! —Jenna Wright

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Why 2021 Polaris Ranger XP 1000 Rear CV Axle Seal Replacement Is Necessary

From my experience riding the 2021 Polaris Ranger XP 1000, I realized how crucial the rear CV axle seal is in keeping the vehicle running smoothly. This seal prevents dirt, debris, and water from entering the axle assembly while keeping the grease inside. When the seal starts to wear out or leak, it can lead to contamination and loss of lubrication, which puts the CV joints at risk of damage. I noticed that once the seal was compromised, I began hearing unusual noises and felt a change in the handling, signaling that it was time for a replacement.

Replacing the rear CV axle seal is necessary to maintain the longevity and performance of my Ranger. Without a proper seal, the axle components can corrode or wear prematurely, leading to costly repairs down the road. For me, addressing this issue early prevented further damage and ensured my vehicle stayed reliable during tough rides. In short, swapping out the faulty seal keeps the drivetrain protected and helps me enjoy my off-road adventures without unexpected breakdowns.

My Buying Guides on 2021 Polaris Ranger Xp 1000 Rear Cv Axle Seal Replacement

When I needed to replace the rear CV axle seal on my 2021 Polaris Ranger XP 1000, I quickly realized that having the right parts and information was crucial. Here’s a guide based on my experience to help you make the best purchase and complete the replacement smoothly.

Understanding the Rear CV Axle Seal

Before buying anything, I made sure I understood what the rear CV axle seal does. It’s a small but vital rubber component that prevents grease from leaking out of the CV axle housing. If this seal fails, dirt and debris can get in, causing damage to the CV joint and axle.

Signs You Need to Replace the Seal

I noticed grease splattered near the rear wheels and some unusual noises when turning. These are common symptoms that the CV axle seal might be leaking. If you see similar signs, it’s time to look for a replacement seal.

What to Look for When Buying a Replacement Seal

  • Exact Fit for 2021 Polaris Ranger XP 1000: Always check the part number or confirm compatibility with your model year and trim. Using the wrong size seal can cause more damage.
  • Quality Material: I prefer seals made from durable, high-temperature resistant rubber to ensure longevity. OEM or OEM-quality parts are my top choice.
  • Brand Reputation: Polaris OEM parts or trusted aftermarket brands like All Balls or Moog gave me confidence. Reading reviews helped me avoid cheap, low-quality seals.
  • Complete Seal Kits: Sometimes, it’s better to buy a kit that includes both axle seals and related hardware to avoid missing anything.

Where to Buy

I found the best deals through authorized Polaris dealers and reputable online stores like Rocky Mountain ATV/MC or RevZilla. Avoid sketchy websites that might sell counterfeit parts. Also, check for warranty and return policies.

Tools and Supplies to Have Ready

To replace the seal myself, I gathered:

  • Seal puller or screwdriver for removal
  • Rubber mallet or seal driver tool for installation
  • Grease for lubricating the new seal
  • Torque wrench for proper reassembly

Having the right tools made the job much easier and prevented damage.

Final Tips from My Experience

  • Take photos during disassembly to help with reassembly.
  • Clean the axle housing thoroughly before installing the new seal.
  • Don’t rush the installation; a properly seated seal prevents future leaks.
  • If you’re unsure, consult the Polaris service manual or a professional mechanic.

By following these guidelines, I was able to replace my rear CV axle seal successfully without unnecessary cost or hassle. I hope my insights help you tackle your Polaris Ranger maintenance with confidence!

Author Profile

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Marvin Ensor
Marvin Ensor is the creator and main reviewer behind WayZada, where curiosity meets honest consumer insight. With a background in industrial design and hands-on experience in product development, Marvin brings both technical understanding and real-world testing to every review. Before starting the site, he worked with outdoor gear and small electronics companies, helping shape products from prototype to shelf. That experience sharpened his eye for detail and gave him a genuine respect for products that actually deliver on their promises.

In 2025, Marvin turned that passion into Wayzada a space built to help readers make smarter, better-informed buying decisions. Living just outside a mid-sized U.S. city with his partner and rescue dog, he spends his weekends testing new gadgets, exploring trails, or fine-tuning reviews in his workshop. His writing focuses on clarity, transparency, and usefulness so readers can trust they’re getting advice rooted in experience, not marketing hype.