Polaris RZR XP 1000 Billet Rear Knuckles

Busted knuckles can wreck your whole ride. When you're pushing through tight trails with branches flying past, a weak spindle is just asking for trouble. These billet rear knuckles for your Polaris RZR XP 1000 give you real backbone where the stock parts fall short — stronger construction, cleaner looks, and the confidence to keep hammering.

Built Tough from the Ground Up

SuperATV machines these from 7075-T6 billet aluminum instead of the softer 6061 that comes stock. That might sound like alphabet soup, but here's what matters: 7075 has a yield strength of 73,000 psi compared to 6061's 40,000 psi. That's roughly twice the muscle. You get the same bolt-on fit as your originals, but you can drive harder and land bigger hits without worrying about failure.

Drop-In Replacement

Installation is straightforward — no weird modifications needed. They work with whatever suspension setup you've got, whether that's factory equipment, aftermarket kit, or a mix of both. Your stock wheel bearings bolt right in, so there's no headache tracking down new hardware. We also trimmed away extra material to give your suspension components a bit more room to move. Once they're on, you just ride.

What You're Getting

• Pair of rear billet knuckles
• Polished billet finish
• Direct OEM replacement

Fits These Models

• Polaris RZR XP 1000 (2017-2023)
• Polaris RZR XP 4 1000 (2017-2023)

Replaces OEM Part #'s: 5140634 & 5140635