Restore reliable clutch master cylinder performance with the All Balls Clutch Master Cylinder Rebuild Kit, manufacturer part number 18-4001 and vendor part number 21-84001. This comprehensive kit is designed to reseal leaking master cylinders and replace worn internal components, helping support consistent hydraulic pressure and dependable clutch operation.
The kit includes copper washers, replacement screws where applicable, cup seals, O-rings, and a replacement piston. Each component is selected to help renew the sealing surfaces and internal function of the original clutch master cylinder. It is a practical service solution for maintenance or repair when leakage, reduced clutch pressure, or aging seals affect system performance.
Designed for fitment on select Husaberg motorcycles, the All Balls 18-4001 kit fits the 2007 and 2008 Husaberg FE 550E; 2004 through 2008 Husaberg FE 650E; and 2004 through 2006 Husaberg FS450E. Verify the motorcycle model and year before installation to ensure proper application. For best results, install the kit according to the motorcycle manufacturer's service procedures and inspect related hydraulic components during servicing.
Features:
- Complete resealing kit for leaking clutch master cylinders
- Includes copper washers, replacement screws where applicable, cup seals, O-rings, and replacement piston
- Designed for select Husaberg FE 550E, FE 650E, and FS450E models
- Brand: All Balls
- Manufacturer part number: 18-4001
- Vendor part number: 21-84001
Fitment:
2000 KTM 400 EXC 4-Stroke
2000 KTM 400 EXC-G Racing
2000 KTM 400 SX 4-Stroke
2000 KTM 520 EXC 4-Stroke
2000 KTM 520 SX 4-Stroke
2001 KTM 400 EXC 4-Stroke
2001 KTM 400 EXC-G Racing
2001 KTM 400 MXC 4-Stroke
2001 KTM 400 SX 4-Stroke
2001 KTM 520 EXC 4-Stroke
2001 KTM 520 MXC 4-Stroke
2001 KTM 520 SX 4-Stroke
2001 KTM 540 SXS
2001 KTM 660 Rallye
2002 KTM 250 EXC-G Racing
2002 KTM 400 EXC 4-Stroke
2002 KTM 400 EXC-G Racing
2002 KTM 400 MXC 4-Stroke
2002 KTM 400 SX 4-Stroke
2002 KTM 520 EXC 4-Stroke
2002 KTM 520 MXC 4-Stroke
2002 KTM 520 SX 4-Stroke
2002 KTM 540 SXS
2002 KTM 65 SX
2002 KTM 660 Rallye
2003 KTM 200 Sx
2003 KTM 250 EXC-G Racing
2003 KTM 400 EXC 4-Stroke
2003 KTM 450 EXC-F
2003 KTM 450 MXC 4-Stroke
2003 KTM 450 SX-F
2003 KTM 450 SXS 4-Stroke
2003 KTM 525 EXC 4-Stroke
2003 KTM 525 MXC 4-Stroke
2003 KTM 525 SX 4-Stroke
2003 KTM 540 SXS
2003 KTM 65 SX
2003 KTM 660 Rallye
2003 KTM 85 SX (17/14)
2004 Husaberg FC 450
2004 Husaberg FC 650
2004 Husaberg FE 450
2004 Husaberg FE 650E
2004 Husaberg FS450C
2004 Husaberg FS450E
2004 Husaberg FS650C
2004 Husaberg FS650E
2004 KTM 105 SX
2004 KTM 125 Exc
2004 KTM 125 SX
2004 KTM 125 SXS
2004 KTM 200 Exc
2004 KTM 200 Sx
2004 KTM 250 EXC
2004 KTM 250 SX
2004 KTM 250 SXS
2004 KTM 300 EXC
2004 KTM 300 MXC
2004 KTM 400 EXC-G Racing
2004 KTM 400 LS-E
2004 KTM 65 SX
2004 KTM 660 Rallye
2004 KTM 85 SX (17/14)
2005 Husaberg FC 450
2005 Husaberg FC 650
2005 Husaberg FE 450
2005 Husaberg FE 650E
2005 Husaberg FS450C
2005 Husaberg FS450E
2005 Husaberg FS650C
2005 Husaberg FS650E
2005 KTM 125 Exc
2005 KTM 125 SX
2005 KTM 200 Exc
2005 KTM 250 EXC
2005 KTM 250 SX
2005 KTM 250 SX-F
2005 KTM 300 EXC
2005 KTM 300 MXC
2005 KTM 400 EXC-G Racing
2005 KTM 400 LS-E
2005 KTM 660 Rallye
2006 Husaberg FE 450
2006 Husaberg FE 650E
2006 Husaberg FS450C
2006 Husaberg FS450E
2006 Husaberg FS650C
2006 Husaberg FS650E
2006 KTM 125 Exc
2006 KTM 125 SX
2006 KTM 200 Exc
2006 KTM 200 Xc
2006 KTM 200 Xc-W
2006 KTM 250 SX-F
2006 KTM 400 EXC-G Racing
2006 KTM 660 Rallye
2006 KTM 660 Rallye Factory Replica
2007 Husaberg FE 450
2007 Husaberg FE 550E
2007 Husaberg FE 650E
2007 Husaberg FS 550 E
2007 Husaberg FS450E
2007 Husaberg FS650C
2007 Husaberg FS650E
2007 KTM 125 Exc
2007 KTM 125 SX
2007 KTM 144 Sx
2007 KTM 200 Exc
2007 KTM 200 Xc
2007 KTM 200 Xc-W
2007 KTM 400 EXC-G Racing
2007 KTM 660 Rallye
2007 KTM 660 Rallye Factory Replica
2008 Husaberg FE 450
2008 Husaberg FE 550E
2008 Husaberg FE 650E
2008 Husaberg FS450E
2008 Husaberg FS650C
2008 Husaberg FS650E
2008 KTM 125 Exc
2008 KTM 125 SX
2008 KTM 144 Sx
2008 KTM 200 Exc
2008 KTM 200 Xc
2008 KTM 200 Xc-W
2008 KTM 450 SMR 4-Stroke
2008 KTM 450 XC ATV
2008 KTM 525 XC ATV
2009 KTM 200 Exc
2010 KTM 200 Exc
2011 KTM 200 Exc
2012 KTM 200 Exc
2013 KTM 200 Exc
2014 KTM 200 Exc
2015 KTM 200 Exc
2016 KTM 200 Exc