This KZ650 Rear Master Cylinder Rebuild Kit is the most complete rear master cylinder Parts kit available anywhere for KZ650 14mm rear master cylinders.
parts are a combination of parts from USA and Japan
Free shipping to locations in the USA. Additional fees required for export shipping.
Fits the following bikes:
1977 KZ650-C1
1978 KZ650-C2
1979 KZ650-C3
1978 KZ650-D SR
1979 KZ650-D SR
Included are the following:
Piston made in the USA similar to Kawasaki part# 43020-1007
Dust cover from Kawasaki OEM #43024-003
Stopper piston made in the USA similar to Kawasaki part# 43022-002
Stopper piston retainer clip from Japan Part# 43068-004
14mm cup seal from Japan similar to OEM# 43019-001
Return spring from Japan similar to OEM# 43018-001
2x stainless JIS reservoir screws
O-ring seal for reservoir.
2x copper washer seals for brake line banjo bolt
Copper washer seal for side plug
Red rubber assembly grease.
The seals are rated for DOT3 Brake fluid only! 
See this video for rebuilding instructions https://youtu.be/o1Fkhk0jZis?si=TtpyAxE-On3syjqJ
THESE BRAKE COMPONENTS ARE TO BE FITTED BY A QUALIFIED MECHANIC. Joes Carb Shop LLC CANNOT BE HELD RESPONSIBLE FOR MISUSE OR INCORRECT FITTING.