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Polaris RZR XP Pro Rear Knuckles - 6061 Billet Aluminum, Sealed Bearing Carrier, Direct Bolt-In (Sold in Pairs)

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Polaris RZR XP Pro Rear Knuckles - 6061 Billet Aluminum, Sealed Bearing Carrier, Direct Bolt-In (Sold in Pairs)

Upgrade Your RZR XP Pro Rear End with Billet Strength

Stop running OEM rear knuckles that are known to wallow out and crack under hard use. The Black Ops Machine Polaris RZR XP Pro Rear Knuckles are machined from 6061 billet aluminum with a sealed bearing carrier for easy serviceability and maximum contamination protection. Hard anodized, direct bolt-in, and sold as a set of 2 spindles — race ready out of the box.

6061 Billet Aluminum
Superior Strength
Sealed Bearing Carrier
Max Contamination Protection
Hard Anodized
Aggressive & Durable Finish
Direct Bolt-In
No Modifications Needed

What’s in the Box

Rear Knuckles / Spindles
Two (2) 6061 billet aluminum units
Sealed Bearing Carrier
Pre-installed for optimal protection
Hardware Kit
All necessary bolts and nuts for installation
Finish
Hard anodized black for durability

Why Riders Upgrade

💪
Superior Billet Strength
Machined from solid 6061 billet aluminum, offering significantly more strength and resistance to cracking and wallowing than stock cast knuckles.
🛡️
Sealed Bearing Carrier
Keeps mud, water, and dirt out of your wheel bearings, extending their life and simplifying maintenance.
🚀
Direct Bolt-In Installation
Designed as a direct replacement for your OEM rear knuckles, requiring no modifications for a straightforward installation.
🏁
Race-Ready Durability
Built to the high standards demanded by racing applications, ensuring maximum confidence and reliability at high speeds and under extreme conditions.
In Stock & Ready To Ship

Processing: Packed with care before shipment

Tracking: Sent when shipped

Confirmation: Sent after checkout

Although rare, some delays may occur. We’ll keep you updated every step of the way.

RZR XP Pro Rear Knuckles vs. Stock Options

STOCK RZR XP PRO REAR KNUCKLES
Cast Aluminum Construction
Prone to Wallowing & Cracking
Open Bearing Design (Contamination Risk)
Difficult Bearing Service
Inferior Strength
⚡ BLACK OPS MACHINE REAR KNUCKLES
6061 Billet Aluminum
Resists Wallowing & Cracking
Sealed Bearing Carrier
Easy Bearing Serviceability
Superior Strength & Durability

🛠️
Expert Support
🚀
Fast Shipping
🔒
Secure Checkout
🏆
Quality Guaranteed

What Riders Are Saying

Wallowed out an OEM rear knuckle after a hard landing in the desert. Put these billet units on and the rear end feels completely transformed — tight and confidence-inspiring. Direct bolt-in made the install straightforward.
— John D., Arizona
The sealed bearing carrier is the feature that sold me. My OEM bearings were constantly contaminated from mud riding. Two seasons on these knuckles and the bearings are still clean and tight.
— Sarah K., Utah

Stop Waiting for Failure, Upgrade Your RZR XP Pro Today!

Invest in the strength and reliability your RZR XP Pro deserves.

Ride with confidence, knowing your rear end is built to withstand the toughest conditions.

Vehicle Fitment

Polaris RZR Pro XP
Polaris RZR Pro XP 4
$999.90
Polaris RZR XP Pro Rear Knuckles - 6061 Billet Aluminum, Sealed Bearing Carrier, Direct Bolt-In (Sold in Pairs)
$999.90

Product Information

Shipping & Returns

Description

Upgrade Your RZR XP Pro Rear End with Billet Strength

Stop running OEM rear knuckles that are known to wallow out and crack under hard use. The Black Ops Machine Polaris RZR XP Pro Rear Knuckles are machined from 6061 billet aluminum with a sealed bearing carrier for easy serviceability and maximum contamination protection. Hard anodized, direct bolt-in, and sold as a set of 2 spindles — race ready out of the box.

6061 Billet Aluminum
Superior Strength
Sealed Bearing Carrier
Max Contamination Protection
Hard Anodized
Aggressive & Durable Finish
Direct Bolt-In
No Modifications Needed

What’s in the Box

Rear Knuckles / Spindles
Two (2) 6061 billet aluminum units
Sealed Bearing Carrier
Pre-installed for optimal protection
Hardware Kit
All necessary bolts and nuts for installation
Finish
Hard anodized black for durability

Why Riders Upgrade

💪
Superior Billet Strength
Machined from solid 6061 billet aluminum, offering significantly more strength and resistance to cracking and wallowing than stock cast knuckles.
🛡️
Sealed Bearing Carrier
Keeps mud, water, and dirt out of your wheel bearings, extending their life and simplifying maintenance.
🚀
Direct Bolt-In Installation
Designed as a direct replacement for your OEM rear knuckles, requiring no modifications for a straightforward installation.
🏁
Race-Ready Durability
Built to the high standards demanded by racing applications, ensuring maximum confidence and reliability at high speeds and under extreme conditions.
In Stock & Ready To Ship

Processing: Packed with care before shipment

Tracking: Sent when shipped

Confirmation: Sent after checkout

Although rare, some delays may occur. We’ll keep you updated every step of the way.

RZR XP Pro Rear Knuckles vs. Stock Options

STOCK RZR XP PRO REAR KNUCKLES
Cast Aluminum Construction
Prone to Wallowing & Cracking
Open Bearing Design (Contamination Risk)
Difficult Bearing Service
Inferior Strength
⚡ BLACK OPS MACHINE REAR KNUCKLES
6061 Billet Aluminum
Resists Wallowing & Cracking
Sealed Bearing Carrier
Easy Bearing Serviceability
Superior Strength & Durability

🛠️
Expert Support
🚀
Fast Shipping
🔒
Secure Checkout
🏆
Quality Guaranteed

What Riders Are Saying

Wallowed out an OEM rear knuckle after a hard landing in the desert. Put these billet units on and the rear end feels completely transformed — tight and confidence-inspiring. Direct bolt-in made the install straightforward.
— John D., Arizona
The sealed bearing carrier is the feature that sold me. My OEM bearings were constantly contaminated from mud riding. Two seasons on these knuckles and the bearings are still clean and tight.
— Sarah K., Utah

Stop Waiting for Failure, Upgrade Your RZR XP Pro Today!

Invest in the strength and reliability your RZR XP Pro deserves.

Ride with confidence, knowing your rear end is built to withstand the toughest conditions.

Vehicle Fitment

Polaris RZR Pro XP
Polaris RZR Pro XP 4