CA Tech USA - Polaris RZR XP / 4 XP Heavy Duty 300M Ball Joints

Note: Will not work on SuperATV or L&W control arms without special cap nuts. Please contact us for the correct caps.

Solid 300M ball joints for Polaris RZR, engineered and tested for extreme performance.

• Full 300M material construction
• Unique adjustment features for easy maintenance
• Advanced greasing system for extended wear and contamination protection
• State-of-the-art Nitride treating for wear resistance and anti-friction
• Complete set of 4 joints
• Full Lifetime Warranty against workmanship defects and damage

These ball joints have been rigorously tested and proven in multiple UTV race series platforms under extreme conditions.

Each ball joint consists of 7 precision-engineered parts:

• Boot: Keeps contaminants out of the joint interior
• Stem: Main component that transfers pressure and connects to the knuckle
• Body: Holds the stem in place
• Wear Plate: Convex disc that transfers torque from the adjustment nut to the stem
• Adjustment Nut: Threads into the body to maintain pressure on the wear plate and keep the joint tight as it wears
• Locking Cap: Secures the ball joint assembly into the control arm
• Adjustment Nut Jamb Bolt: Locks the adjustment nut in place once desired tension is set

A drilled passage runs through all internal components, connecting to a flush-mount grease fitting in the jamb bolt. Grease flows directly to the stem through a cross-drilled hole, then exits via a grease groove around the stem exterior. A unique spiral groove distributes grease to the upper portion of the joint when pivoted, ensuring complete stem lubrication and protection against water and contaminants.

All components are designed and machined in-house from U.S.-made 300M material. After inspection, each part receives Liquid Nitride treating from a top-tier coating facility used by Glock, Sig Sauer, Barrett, NASCAR teams, and aerospace leaders. This process hardens the material, provides anti-friction coating, and delivers case hardening protection.

Individual components are available separately for service and replacement.