Short Description
Genuine KTM front brake master cylinder piston repair kit for selected KTM 50 SX, 50 SX Mini, Factory Edition, SX-E 5 and other 50cc models. Designed to rebuild the front hand brake master cylinder and restore proper hydraulic braking performance.
Product Description
KTM OEM Front Brake Master Cylinder Piston Repair Kit
The KTM OEM Front Brake Master Cylinder Piston Repair Kit 45113008000 is a genuine replacement kit designed for the front hand brake master cylinder used on selected KTM 50cc motorcycles.
This repair kit is used to service the internal piston mechanism of the front brake master cylinder, helping restore proper hydraulic pressure, smooth lever operation and reliable front braking performance.
It is ideal when the front brake master cylinder is leaking, losing pressure or no longer operating correctly due to worn internal piston components.
Features
- Genuine KTM OEM product
- Front brake master cylinder piston repair kit
- Designed for the hand brake master cylinder
- Direct replacement for original internal piston components
- Helps restore hydraulic brake pressure
- Helps repair leaking or worn brake master cylinders
- Factory-spec fit and dimensions
- Suitable for mini motocross and electric mini models
- No modification required
Compatibility / Fitment
KTM 50 SX
- KTM 50 SX 2006-2023
KTM 50 SX Mini
- KTM 50 SX Mini 2008-2023
KTM 50 SX Factory Edition
- KTM 50 SX Factory Edition 2021-2023
KTM SX-E 5
- KTM SX-E 5 Electric 2020-2023
KTM 50 SXS
- KTM 50 SXS 2011-2016
KTM Junior / Pro Junior
- KTM 50 SX Junior / Pro Junior LC 2004-2009
KTM Pro Senior
- KTM 50 SX Pro Senior LC 2004-2005
KTM Adventure
- KTM 50 Senior Adventure 2004-2007
- KTM 50 Junior Adventure 2004-2007
KTM Supermoto
- KTM 50 Supermoto 2006
Product Details
Brand: KTM
Product Type: Front Brake Master Cylinder Piston Repair Kit
OEM Part Number / SKU: 45113008000
Brake Position: Front
Installation Location: Front Hand Brake Master Cylinder
Application: Mini Motocross / Off-Road
Condition: New / Genuine OEM
Typical Symptoms of a Worn Master Cylinder Piston
This repair kit may be required if you experience:
- Soft or inconsistent front brake lever feel
- Loss of hydraulic brake pressure
- Brake fluid leakage from the master cylinder
- Front brake lever not returning correctly
- Reduced front braking performance
Important Note
This product is a front brake master cylinder piston repair kit.
It is not a front brake caliper piston repair kit.
Brake system servicing should be carried out correctly and the hydraulic system must be properly bled after installation.
Please check your motorcycle model, production year and OEM part number before ordering.
For the most accurate fitment, compare the OEM number:
45113008000
with the part specified for your motorcycle.
Legal Disclaimer
Motoes is not an authorized KTM dealer. The products offered for sale are original; however, Motoes does not operate as an official distributor or authorized service center of KTM.






























