Up & Running Polaris RZR RS1 Rear Knuckle

A Quality Replacement at an Affordable Price
Waiting until your rear knuckle breaks to replace it is a mistake. It’ll cause you to crash which can result in costly damage. Avoid that by replacing them with SuperATV’s Up & Running Knuckles for your Polaris RZR RS1. They’re a direct fit, making them compatible with stock and other aftermarket parts.

A Perfect Fit
Our Up & Running knuckles are a direct replacement for your stock knuckles, so you can run other suspension parts with it. Whether it's SuperATV, stock, or other aftermarket parts, they’ll fit! Plus, it makes servicing your stock wheel bearings easier.

Get Ready for Your Weekend Ride
Replacing your worn knuckles shouldn’t cost an arm and a leg. With SuperATV’s Up & Running Knuckles, you’re getting OEM quality without breaking the bank. With fast shipping, you’ll be ready to hit the trails in no time.

Features-

• Sold individually
• OEM quality
• Made of cast aluminum

Fitment-

• Polaris RZR RS1 : 2018-2021

Replacement for OEM part #:

• Left side: 5140634
• Right side: 5140635 (R)

Once your Steel Steeds gear leaves our warehouse, it typically arrives at your doorstep within 2–5 business days, unless otherwise noted. We partner with trusted shipping carriers to ensure your off-road essentials get to you fast and hassle-free. So gear up with confidence—your next big adventure is just around the corner!

We are committed to providing quality products and stand behind our items with a warranty. Exact coverage may vary, so please refer to our warranty page for more details!