Rear Brake Master Cylinder Piston Repair Kit for KTM 85 SX 2025-2026 - A41013061000

This genuine OEM rear brake master cylinder piston repair kit is designed to restore the hydraulic performance and safety of your motorcycle's braking system. It includes all the essential internal components required to rebuild the rear master cylinder, ensuring consistent pressure and reliable stopping power during every ride.

This repair kit is compatible with the following models: 2025-2026 KTM 85 SX (17/14 and 19/16), 2025-2026 Husqvarna TC 85 (17/14 and 19/16), and 2025-2026 GasGas MC 85 (17/14 and 19/16). It is a direct factory replacement part designed specifically for these newer 85cc motocross platforms.

The kit features high-quality rubber seals, a precision-machined piston, a durable return spring, and a protective dust boot to keep contaminants out of the hydraulic system. Using original equipment parts ensures a perfect fit and maintains the factory-spec feel of your rear brake pedal.

For the best results, we recommend cleaning the master cylinder bore thoroughly before installing the new components. Always use fresh, high-quality brake fluid as specified in your owner's manual and ensure the system is properly bled to remove any trapped air after the rebuild is complete.

Check compatibility list below to see if this part fits your motorcycle model.