FITMENT:
- Polaris RZR XP 1000 (2017+)
- Polaris RZR XP 4 1000 (2017+)
- Replacement for OE #'s: 5140634, 5140635
FEATURES:
Sick of Busted Knuckles?
Can you think of a part that can ruin your day quicker than a knuckle if it breaks? When you’ve got trees whizzing past on either side of you, a cracked spindle can lead to a catastrophe. Get our Billet Rear Knuckles for the Polaris RZR XP 1000 and get unprecedented strength and an eye-catching billet finish that you love.
Virtually Two Times Stronger than Stock
We use 7075-T6 billet aluminum to make these spindles, where stock uses 6061. The yield strength of 7075 is 73,000 psi, which is nearly double that of 6061’s 40,000 psi yield strength. What can you do with double the strength? Keep the pedal down twice as long, hit jumps that are twice as big, and have twice as much fun.
Perfect Compatibility
These spindles work with any suspension you’ve got whether it’s stock, SuperATV, or anything else. It’s also compatible with your stock wheel bearing for easy service and replacement. It matches stock geometry perfectly so you can simply bolt it up and ride. We also eliminated unnecessary material to give it more clearance for your suspension. You get a smooth installation and a smooth ride.
UTV Direct Return Policy
Eligible items may be returned within 30 days of receiving your order. All returns must be submitted through the UTV Returns Center and are subject to inspection before a refund or exchange is processed.
- Items must be returned within 30 days of receiving them.
- Items must be returned in new, undamaged, uninstalled condition and in the original packaging.
- Windshields with the protective covering removed are not returnable.
- Special-order and custom items are non-returnable.
- Return shipping expenses are the responsibility of the customer unless UTV Direct shipped the incorrect item in error.
- Exchanges will not be shipped until the return has been received and inspected.
- The original shipping cost may be deducted from any returned order that received free or shared shipping when the order was placed.
- Returned items that do not meet return requirements may be denied a refund or exchange.
SuperATV - 10%
During checkout, we ask for your year, make, and model. UTV Direct is not required to verify fitment on the products selected. It is ultimately the customer’s responsibility to confirm that the products ordered are correct for their vehicle. Fitment information is listed on each product page. If you are unsure, please contact our sales team before placing your order.
Refund timing may vary. You should generally expect to receive your refund within four weeks of giving your package to the return shipper, although many refunds are completed more quickly. This time period includes return transit time, inspection/processing time, and bank/payment processing time.
View Full Shipping & Returns Policy
Return authorization emails are typically sent within 2 business days. Please check all email folders, including spam and promotions folders.

