At DMG Motorsports, we present the All Balls Master Cylinder Rebuild Kit (21-81134) — a complete, precision-engineered solution for restoring worn or leaking brake and clutch master cylinders back to like-new performance. Rather than replacing an entire master cylinder assembly, this kit lets you service the unit yourself with all of the internal wear components in one convenient package, saving you time and money while getting you back on the road or trail with confidence. All Balls Racing is a trusted name in powersports hydraulic components, and DMG Motorsports is proud to offer this rebuild kit to keep your braking or clutch system operating safely and reliably.

Features:

• Contains all the parts needed to re-seal a leaking brake or clutch master cylinder in one complete kit
• Includes cup seals, copper washers, O-rings, and replacement screws where applicable for a full internal rebuild
• Some fitments include a replacement piston for a truly complete restoration
• Designed to restore proper hydraulic sealing and eliminate fluid leaks for consistent, reliable braking or clutch feel
• A cost-effective alternative to purchasing a full OE master cylinder replacement
• Sold as a complete, application-specific kit for straightforward installation

Fitment