At DMG Motorsports, we present the All Balls Racing Master Cylinder Rebuild Kit (21-81131) — a complete, purpose-built solution for restoring a leaking or worn brake or clutch master cylinder to like-new performance. Rather than replacing an entire master cylinder assembly, this kit gives you every wear item required to properly reseal and refresh the unit, saving you time and money while getting your machine back on the trail, track, or road with confidence. All Balls Racing is a trusted name in powersports hard parts, and DMG Motorsports is proud to stock this rebuild kit for riders and technicians who demand a reliable, complete-in-one-box repair.

Features:

• Contains all parts needed to re-seal a leaking brake or clutch master cylinder in one complete kit
• Includes cup seals to restore proper hydraulic sealing and pressure
• Copper washers included for a proper, leak-free banjo bolt seal
• O-rings included to seal critical mating surfaces
• Replacement screws included where applicable for a full, factory-style rebuild
• Helps restore consistent lever and pedal feel by eliminating internal leaks and worn components
• Designed as a direct fitment solution for the specified master cylinder application — always confirm fitment before ordering
• Convenient all-in-one kit eliminates the need to source individual seals and hardware separately

Fitment