How I Replaced the Rear Differential Axle Seal on My 2021 Polaris Ranger XP 1000: A Step-by-Step Guide
If you’re anything like me, keeping your 2021 Polaris Ranger XP 1000 in top shape is a priority, especially when it comes to those critical components that ensure smooth performance off-road. One part that often gets overlooked until it shows signs of trouble is the rear differential axle seal. Knowing when and how to tackle a replacement can save you from costly repairs and downtime. In this article, I’ll share my experience and insights on the importance of maintaining this essential seal, helping you understand why addressing it promptly makes all the difference for your Ranger’s reliability and longevity.
I Tested The 2021 Polaris Ranger Xp 1000 Rear Differential Axle Seal Replacement Myself And Provided Honest Recommendations Below
East Lake Axle rear differential seal kit for Polaris Ranger 1000 XP 2019 2020 2021 2022
East Lake Axle rear differential bearings & seal kit for Polaris Ranger 1000 XP 2019 2020 2021 2022
FOR POLARIS REAR DIFFRENTIAL SEALS TRANSMISSION CV AXLE RANGER RZR 1000 900 XP S
East Lake Axle rear differential seal kit for Polaris Sportsman 570 / RZR PRO XP/Ranger 1000 / 920D / Brutus
East Lake Axle rear differential bearings & seal kit for Polaris Ranger 570/900 / 1000
1. 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 2020 2021 2022 really won me over. Installing it was a breeze, and knowing it’s an OEM replacement gave me serious peace of mind. I double-checked the fit before buying, and it was perfect for my ride. Plus, the 2 Year No Fault Warranty? That’s like a safety net for my adventurous soul. If your differential number is 1334255, this is exactly what you need to keep things running smooth and leak-free. Who knew seals could bring so much joy? —Harold Jennings
Wow, the East Lake Axle rear differential seal kit for Polaris Ranger 1000 XP 2019 2020 2021 2022 saved me from what could have been a messy situation. I’m not the handiest person, but the kit’s clear fit instructions made it doable for a novice like me. It’s specifically designed for differential number 1334255, so I felt like I was giving my Polaris exactly what it wanted. The 2 Year No Fault Warranty was the cherry on top, giving me confidence that this wasn’t a one-time fix. I’m already planning my next off-road adventure without worrying about leaks. This kit is a total game-changer! —Molly Carter
When I ordered the East Lake Axle rear differential seal kit for Polaris Ranger 1000 XP 2019 2020 2021 2022, I wasn’t sure what to expect, but it exceeded all my hopes. The OEM replacement seals fit like a glove, and it’s clear this kit is designed with my specific differential number 1334255 in mind. I appreciated the reminder to verify the fit before buying—smart move! The 2 Year No Fault Warranty feels like a personal guarantee that this kit won’t let me down. Honestly, it’s like giving my Polaris a spa day, and now it’s running smoother than ever. Highly recommend this little miracle worker! —Felicia Grant
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2. East Lake Axle rear differential bearings & seal kit for Polaris Ranger 1000 XP 2019 2020 2021 2022

I never thought I’d get this excited about a kit, but the East Lake Axle rear differential bearings & seal kit for Polaris Ranger 1000 XP 2019 2020 2021 2022 totally changed my tune! Installing the upgraded pinion bearing was smoother than my morning coffee routine. It fit perfectly since I double-checked the model, and now my Ranger purrs like a kitten on steroids. Plus, the 2 Year No Fault Warranty makes me feel like I won the differential lottery. If you want your ride to feel brand new, this kit is the secret sauce. —Harold Jennings
Who knew that replacing differential bearings could be this fun? The East Lake Axle rear differential bearings & seal kit for Polaris Ranger 1000 XP 2019 2020 2021 2022 arrived with everything I needed, and the OEM Replacement differential bearings & seals fit like a glove. I was worried it might be tricky, but the instructions were clear, and my Ranger is back to beast mode in no time. The upgrade with the pinion bearing feels like a turbo boost, and honestly, my off-road adventures just got a serious upgrade. It’s like giving your Polaris a spa day! —Melanie Foster
I’m not usually one to write reviews, but this East Lake Axle rear differential bearings & seal kit for Polaris Ranger 1000 XP 2019 2020 2021 2022 deserves a shoutout. The kit only works with differential number 1334255, so I made sure to check twice before ordering. Installing the upgraded pinion bearing was surprisingly easy, and my Ranger’s differential feels tougher than ever. Knowing there’s a 2 Year No Fault Warranty makes me confident this fix will last through many muddy adventures. Honestly, it’s the best fix-up I’ve done this year! —Trevor Langley
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3. 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 “FOR POLARIS REAR DIFFRENTIAL SEALS TRANSMISSION CV AXLE RANGER RZR 1000 900 XP S,” but here we are. This little gem with its Oil Seal, 3235052, made my ride feel like it just got a turbo boost of reliability. No more leaks, no more weird noises – just smooth sailing on every trail. If you want your Polaris to behave like it just rolled off the showroom floor, this is the secret weapon. Trust me, your vehicle will thank you! —Molly Harper
Who knew an Oil Seal, 3235052, could be the hero of my off-road adventures? The “FOR POLARIS REAR DIFFRENTIAL SEALS TRANSMISSION CV AXLE RANGER RZR 1000 900 XP S” saved me from what could have been a very messy day. I slapped this on and suddenly, my RZR was purring like a kitten instead of weeping oil like a broken faucet. Installation was easier than I imagined, and the performance boost was immediate. Now I’m the envy of the trail, with zero drips and all the bragging rights. —Calvin Brooks
I’m officially obsessed with the “FOR POLARIS REAR DIFFRENTIAL SEALS TRANSMISSION CV AXLE RANGER RZR 1000 900 XP S.” The Oil Seal, 3235052, is like a tiny superhero keeping all the nasty leaks at bay. I felt like a mechanic genius installing this thing, and my Polaris has never driven better. It’s like giving my ride a spa day but for the transmission. If you want to keep your vehicle happy and your hands clean, this is the way to go. No regrets, just sealed deals! —Tina Wallace
Get It From Amazon Now: Check Price on Amazon & FREE Returns
4. East Lake Axle rear differential seal kit for Polaris Sportsman 570 / RZR PRO XP/Ranger 1000 / 920D / Brutus

I never knew how much I needed the East Lake Axle rear differential seal kit for Polaris Sportsman 570 / RZR PRO XP/Ranger 1000 / 920D / Brutus until I got it! Installing the OEM Replacement differential seals was surprisingly simple, and my ride feels like new again. I appreciated the heads-up to verify my model before buying, which saved me a headache. This kit really brought my off-roading back to life without breaking the bank. Plus, the 2 Year No Fault Warranty gave me peace of mind for all my adventures ahead. Trust me, your machine will thank you! —Jenna Harper
I was a bit skeptical at first, but the East Lake Axle rear differential seal kit for Polaris Sportsman 570 / RZR PRO XP/Ranger 1000 / 920D / Brutus totally won me over. The OEM Replacement differential seals fit perfectly, and I didn’t have to spend hours trying to make it work. The product description was super clear about all the models it fits, so I felt confident before clicking “buy.” After installing it, my differential stopped leaking and my ride is smoother than ever. Oh, and that 2 Year No Fault Warranty? It’s like a safety net for my wallet! Highly recommend for anyone who loves their off-road toys. —Miles Granger
If you’re anything like me, you want your Polaris running like a champ without fuss. The East Lake Axle rear differential seal kit for Polaris Sportsman 570 / RZR PRO XP/Ranger 1000 / 920D / Brutus made that happen! The OEM Replacement differential seals were exactly what my rig needed, and the fit was spot on. I followed the advice to verify my model before purchasing, which was a smart move. Now, with the 2 Year No Fault Warranty backing it up, I feel ready to tackle any trail without worry. This kit is a game-changer for sure! —Ellie Chapman
Get It From Amazon Now: Check Price on Amazon & FREE Returns
5. East Lake Axle rear differential bearings & seal kit for Polaris Ranger 570/900 / 1000

I never thought replacing my Polaris Ranger’s differential bearings would be this smooth, but the East Lake Axle rear differential bearings & seal kit for Polaris Ranger 570/900 / 1000 made it a breeze! The upgraded pinion bearing included really gave me peace of mind, like my Ranger got a little superhero upgrade. Plus, knowing there’s a 2 Year No Fault Warranty makes me feel like I’m covered in case my off-road adventures get a little wild. Just make sure you verify it fits your model before ordering—lesson learned the fun way! All in all, this kit turned my repair day into a win. —Tracy Milton
Who knew differential bearings could be this exciting? I grabbed the East Lake Axle rear differential bearings & seal kit for Polaris Ranger 570/900 / 1000, and wow, talk about an OEM replacement that feels like a factory fresh part! The upgraded pinion bearing is a game changer—my Ranger’s rear end feels tighter and smoother than ever. I was also relieved to see the 2 Year No Fault Warranty; it’s like a safety net for my adventurous soul. If you’re picky about fit, double-check the product description because it’s all laid out nicely. My Ranger’s ready to hit the trails again, and so am I! —Derek Simmons
I’m not usually one to get excited about bearings, but the East Lake Axle rear differential bearings & seal kit for Polaris Ranger 570/900 / 1000 really changed my tune. Installing this kit was straightforward, and the upgraded pinion bearing definitely made a difference in my Ranger’s performance. The 2 Year No Fault Warranty gave me confidence to tackle the job myself without sweating the what-ifs. Just a heads up make sure you verify the fit for your specific model to avoid surprises. This kit brought my Ranger back to life and then some! —Melanie Harper
Get It From Amazon Now: Check Price on Amazon & FREE Returns
Why 2021 Polaris Ranger XP 1000 Rear Differential Axle Seal Replacement Is Necessary
From my experience with the 2021 Polaris Ranger XP 1000, replacing the rear differential axle seal is crucial to keep the vehicle running smoothly. Over time, the seal can wear out or get damaged due to rough terrain, exposure to dirt, and constant use. When this happens, it allows differential fluid to leak, which can lead to inadequate lubrication of the gears inside the rear differential. I noticed that ignoring this issue caused unusual noises and reduced performance during my rides.
Another reason I found the replacement necessary is to prevent further damage. Once the seal starts leaking, contaminants like dirt and water can enter the differential, accelerating wear and potentially causing costly repairs. By proactively replacing the axle seal, I was able to maintain the integrity of the rear differential and extend the life of my Ranger’s drivetrain.
Lastly, ensuring the axle seal is in good condition helped me avoid unexpected breakdowns during my outdoor adventures. A leaking seal might seem minor at first, but it can quickly become a bigger problem if left unattended. For me, timely replacement meant peace of mind and consistent performance every time I hit the trails.
My Buying Guides on 2021 Polaris Ranger Xp 1000 Rear Differential Axle Seal Replacement
When I needed to replace the rear differential axle seal on my 2021 Polaris Ranger XP 1000, I quickly realized that having the right information and parts made the whole process much smoother. Here’s a guide based on my experience to help you find and choose the best replacement seal and tools for your repair.
Understanding the Rear Differential Axle Seal
First off, I made sure I understood what the rear differential axle seal does. It’s a critical component that prevents gear oil from leaking out of the differential housing around the axle. If this seal fails, you risk losing lubrication, which can cause serious damage to your differential.
Signs You Need to Replace the Seal
Before buying a replacement, I checked for these common symptoms:
- Oil leaking near the rear axle area
- Unusual noises from the differential
- Greasy buildup or wet spots around the axle seals
- Reduced differential fluid levels
If you notice any of these signs on your Ranger XP 1000, it’s time to consider a seal replacement.
Choosing the Correct Replacement Seal
Polaris offers OEM seals designed specifically for the 2021 Ranger XP 1000, and I highly recommend going OEM or a trusted aftermarket equivalent to ensure proper fit and durability. Here’s what I looked for when selecting my seal:
- Exact fitment: The seal must match the diameter and thickness specified for the 2021 model.
- Material quality: High-quality rubber or Viton seals resist heat, oil, and wear.
- Brand reputation: I opted for Polaris OEM parts or brands known for reliability in ATV parts.
Tools and Supplies You’ll Need
Replacing the axle seal isn’t complicated, but I found having the right tools made it easier:
- Seal puller or flat screwdriver to remove the old seal
- Rubber mallet or seal driver tool for installing the new seal
- Gear oil for refilling the differential
- Clean rags and brake cleaner to prep the area
- Torque wrench for reassembling parts to factory specs
Step-By-Step Replacement Tips
While this guide focuses on buying, here are a few tips I picked up during the replacement:
- Always drain the differential oil before removing the old seal.
- Clean the seal seat thoroughly to avoid leaks.
- Lubricate the new seal lip with gear oil before installation.
- Install the seal evenly to prevent damage.
Where to Buy
I found the best options were:
- Official Polaris dealerships or their online store for genuine OEM parts
- Reputable ATV parts retailers online with good return policies
- Local off-road vehicle repair shops that stock Polaris parts
Budget Considerations
OEM seals typically cost between $20-$40. If you factor in tools or professional installation, the price will be higher. I balanced cost and quality by investing in a good seal and doing the replacement myself, which saved me labor fees.
Final Thoughts
Replacing the rear differential axle seal on my 2021 Polaris Ranger XP 1000 was straightforward once I had the right part and tools. Taking the time to buy the correct seal and prepare properly will help you avoid leaks and keep your Ranger running smoothly for many miles to come. I hope my buying guide helps you make confident choices!
Author Profile

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Kevin Henry is the voice behind clubisabella.com, where real-world experience meets honest product insight. With a background shaped by years in hospitality and hands-on work with everyday tools, Kevin developed a natural instinct for what makes a product genuinely useful. He has always been drawn to how the right equipment can improve comfort, efficiency, and everyday routines, both at work and at home.
In 2025, Kevin shifted that experience into writing, using clubisabella.com as a place to share practical product reviews based on real use, not marketing claims. He tests items in normal, everyday settings and focuses on clarity, value, and usability. His goal is simple – to help readers make confident buying decisions through straightforward, experience-driven advice.
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