Black Ops Machine HD Ball Joint Rebuild Kit - 300M Steel Pin + Neoprene Boot (Can-Am & Polaris)

The Trail Spare That Could Save Your Ride — HD Ball Joint Rebuild Kit

Stop getting stranded with a blown ball joint boot and no spare. The Black Ops Machine HD Ball Joint Rebuild Kit gives you everything needed to rebuild your HD ball joint trailside or in the shop — a 300M aerospace-grade steel pin, fresh neoprene dust boot, and C-clip. Available for HD Can-Am Upper, HD Can-Am Lower, HD Polaris, HD OG Polaris, and HD Pro R/Turbo R. Sold individually.

Why Serious Riders Keep an HD Ball Joint Rebuild Kit on Hand

• 300M Aerospace Steel Pin – The same high-performance alloy used in motorsports and aerospace. Exceptional tensile strength, ductility, and impact resistance — far beyond standard chromoly or carbon steel.
• Premium Neoprene Dust Boot – CR/Neoprene rubber resists heat, oil, UV, and tearing. Maintains flexibility in desert heat and mountain cold where standard boots crack and fail.
• C-Clip Included – Complete rebuild in one kit. No hunting for hardware.
• Restores Like-New Performance – Rebuild your existing HD joint instead of replacing the whole assembly — saves money and gets you back on the trail faster.
• 5 Style Options – Specific kits for HD Can-Am Upper, HD Can-Am Lower, HD Polaris, HD OG Polaris, and HD Pro R/Turbo R — select your exact joint below.
• Precision Lip Seals – Reinforced boot base grips the joint housing firmly under constant articulation, keeping grease in and contamination out.
• Trail Spare Insurance – Lightweight enough to toss in your gear bag. Better to have it and not need it than need it and not have it.
• Black Ops Machine Quality – Designed for high-horsepower UTVs and modern suspension travel. Built to survive the abuse, not just survive the warranty period.

Perfect For

🏜️ Desert racing • 🪨 Rock crawling • 🌲 Trail riding • 🏁 Race day spares • 🔧 Preventive maintenance • 💥 High-horsepower builds

Complete Kit Includes

• ✓ One (1) 300M steel ball joint pin
• ✓ One (1) neoprene dust boot
• ✓ One (1) C-clip

Technical Specifications

Vehicle Fitment

• Can-Am — HD Upper ball joint compatible models (select HD Can-Am Upper)
• Can-Am — HD Lower ball joint compatible models (select HD Can-Am Lower)
• Polaris RZR — HD Polaris ball joint compatible models (select HD Polaris)
• Polaris RZR — OG/legacy HD Polaris ball joint compatible models (select HD OG Polaris)
• Polaris RZR Pro R / Turbo R — HD ball joint compatible models (select HD Pro R/Turbo R)

Why 300M Steel Beats Standard Chromoly in Ball Joint Pins

Most aftermarket ball joint pins are made from 4340 chromoly steel — a solid material, but one that reaches its limits under the repeated high-impact loads of modern high-horsepower UTVs. 300M is a low-alloy, ultra-high-strength steel originally developed for aircraft landing gear and racing axles. It offers significantly higher tensile strength than 4340 (typically 280,000+ PSI vs. 200,000 PSI) while maintaining excellent ductility — meaning it bends before it snaps, which is critical in a suspension component. Heat-treated and precision-machined to exact tolerances, the 300M pin maintains tight fit and consistent rotation even after thousands of miles of hard use. Pair that with a neoprene boot that actually seals out contamination and you have a rebuild kit that restores your joint to better-than-new performance.

Real Riders, Real Results

"Kept one of these in my gear bag all season. Finally needed it on a race day when my boot tore on a rock. Had the joint rebuilt in 20 minutes and finished the race. This kit is mandatory."

"The 300M pin is noticeably tighter and smoother than the stock pin I pulled out. Boot quality is excellent too — no comparison to OEM. Worth every dollar."

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✓ 30-Day Returns - Don't love it? Return it hassle-free
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✓ Expert Support - 801-899-2520 | Real UTV techs

Stop gambling on worn ball joint components. Rebuild it right, ride with confidence.