Restore reliable clutch hydraulic performance with the All Balls Clutch Master Cylinder Rebuild Kit, manufacturer part number 18-4003 and vendor part number 21-84003. This rebuild kit is designed to reseal leaking master cylinders and replace worn internal components, helping return the clutch system to proper operation without replacing the complete master cylinder assembly.
The kit contains the essential components needed for a thorough master cylinder service, including copper washers, replacement screws where applicable, cup seals, O-rings and a replacement piston. Each component is selected to support dependable sealing and consistent hydraulic pressure when installed according to the motorcycle manufacturer’s service procedures. This kit is intended for riders and technicians repairing compatible clutch master cylinders on off-road motorcycles.
Fitment includes the 2010–2014 KTM 150 XC, 2011 Husaberg FS570, 2014 Husqvarna TC 125, 2015 Husqvarna TC 125 and 2015 Husqvarna TE 125. Verify the motorcycle model, year and existing master cylinder configuration before installation. The All Balls 18-4003 rebuild kit is a practical replacement solution for servicing a leaking or worn clutch master cylinder while maintaining the original system configuration.
Features:
- Complete resealing kit: Contains the components required to reseal compatible leaking clutch master cylinders
- Replacement components: Includes copper washers, replacement screws where applicable, cup seals, O-rings and a replacement piston
- Application: Designed for clutch master cylinder service on compatible KTM, Husaberg and Husqvarna motorcycles
- Fitment: Fits 2010–2014 KTM 150 XC, 2011 Husaberg FS570, 2014–2015 Husqvarna TC 125 and 2015 Husqvarna TE 125
- Brand and part number: All Balls manufacturer part number 18-4003; vendor part number 21-84003
Fitment:
2009 Husaberg FE 450
2009 Husaberg FE 570
2009 KTM 125 Exc
2009 KTM 125 SX
2009 KTM 150 SX
2009 KTM 200 Xc
2009 KTM 200 Xc-W
2009 KTM 450 XC ATV
2009 KTM 525 XC ATV
2010 Husaberg FE 390
2010 Husaberg FE 450
2010 Husaberg FE 570
2010 Husaberg FS570
2010 Husaberg Fx450
2010 KTM 125 SX
2010 KTM 150 SX
2010 KTM 150 XC
2010 KTM 200 Xc-W
2011 Husaberg FE 390
2011 Husaberg FE 450
2011 Husaberg FE 570
2011 Husaberg FS570
2011 Husaberg Fx450
2011 KTM 125 SX
2011 KTM 150 SX
2011 KTM 150 XC
2011 KTM 200 Xc-W
2012 Gas Gas EC 250
2012 KTM 125 SX
2012 KTM 150 SX
2012 KTM 150 XC
2012 KTM 200 Xc-W
2012 KTM 450 SX-F
2013 Gas Gas EC 250
2013 Gas-Gas EC 250 Replica
2013 KTM 125 SX
2013 KTM 150 SX
2013 KTM 150 XC
2013 KTM 200 Xc-W
2014 Gas-Gas EC 250
2014 Husqvarna TC 125
2014 Husqvarna TC 250
2014 KTM 125 Exc
2014 KTM 125 EXC Six Days
2014 KTM 125 SX
2014 KTM 150 SX
2014 KTM 150 XC
2014 KTM 200 Xc-W
2015 Gas-Gas EC 250
2015 Husqvarna TC 125
2015 Husqvarna TC 250
2015 Husqvarna TE 125
2015 KTM 125 Exc
2015 KTM 125 EXC Factory Edition
2015 KTM 125 EXC Six Days
2015 KTM 125 SX
2015 KTM 150 SX
2015 KTM 200 Xc-W
2016 Husqvarna TE 125
2016 KTM 125 Exc
2016 KTM 125 EXC Six Days
2016 KTM 200 Xc-W
2017 Gas-Gas EC 250
2018 Gas-Gas EC 200
2018 Gas-Gas EC 250
2018 Gas-Gas EC 300
2018 Gas-Gas GP 250 Enduro
2018 Gas-Gas XC 250
2018 Gas-Gas XC 300
2019 Gas-Gas EC 200
2019 Gas-Gas EC 250
2019 Gas-Gas EC 250 Six Days
2019 Gas-Gas EC 300
2019 Gas-Gas EC 300 Six Days
2019 Gas-Gas XC 200
2019 Gas-Gas XC 250
2019 Gas-Gas XC 300
2020 Gas-Gas EC Ranger 300
2020 Rieju MR 300 Racing
2020 Rieju MR Ranger 300
2021 Rieju MR 250 Racing
2021 Rieju MR 300 Pro
2021 Rieju MR 300 Racing
2021 Rieju MR Ranger 300
2022 Rieju MR 200 Pro
2022 Rieju MR 200 Racing
2022 Rieju MR 250 Pro
2022 Rieju MR 250 Racing
2022 Rieju MR 300 Pro
2022 Rieju MR 300 Racing
2022 Rieju MR Ranger 300
2023 Rieju MR 200 Pro
2023 Rieju MR 200 Racing
2023 Rieju MR 250 Pro
2023 Rieju MR 250 Racing
2023 Rieju MR 300 Pro
2023 Rieju MR 300 Racing
2023 Rieju MR Ranger 300
2024 Rieju MR 200 Pro
2024 Rieju MR 250 Pro
2024 Rieju MR 300 Pro
2024 Rieju MR 300 Racing
2024 Rieju MR Ranger 300