At DMG Motorsports, we present the All Balls Front Master Cylinder Rebuild Kit (part no. 21-81141), engineered as a direct replacement for the Harley-Davidson OEM 42809-04B front master cylinder service kit. If your front brake lever feels spongy, the reservoir is weeping fluid, or the master cylinder bore has simply seen too many miles, this kit gives you everything needed to restore factory-fresh braking performance without the expense of a full master cylinder replacement. All Balls Racing is a trusted name in powersports hydraulic components, and this kit is built to bring leaking or worn front master cylinders back to like-new condition.

Features:

• Complete rebuild kit designed to re-seal a leaking or worn front brake master cylinder
• Cross-references to Harley-Davidson OEM part number 42809-04B for correct fitment
• Includes cup seals to restore proper hydraulic pressure and stop fluid leaks
• Copper washers included for a reliable, leak-free banjo bolt seal
• O-rings included to seal critical mating surfaces within the master cylinder body
• Replacement screws included where applicable for a complete, factory-style rebuild
• Cost-effective alternative to purchasing an entirely new master cylinder assembly
• Straightforward installation for shops and experienced home mechanics alike

Fitment