Regulator rectifier for many Kawasaki KZ's and other models. Battery not charging? Might be time to replace your rectifier regulator. Unlike many other units, this is designed to work with lead acid based, gel and lithium batteries. The battery must be fully charged and in perfect working order before installing a new regulator rectifier.
This unit has a very consistent output and runs cooler than the original part due to the modern heat sink. The stable voltage output across the RPM range keeps the battery charged so you can ride with confidence!
All units are tested prior to shipping for quality assurance. Includes industry-leading 1 year warranty.
Dimensions: 68mm length x 80mm width x 25mm height
Mounting bolt spacing: 64mm (Measured center to center)
Replaces Kawasaki Part Numbers: 21066-1030, 21066-1018
Note: Corroded / loose / damaged wiring is a common cause for charging system issues, make sure all connections are clean and secure. If the stock connector is brittle or melted and the terminals are corroded, it's best to replace them before installing the new part. This unit might not mount where the stock part was, check dimensions above.
Note: It is strongly recommended to isolate the charging issue prior to replacing the regulator / rectifier. With a bad battery, stator or wiring issues, a new RR will not charge the battery. A faulty stator or wiring can cause damage to the RR.
EL250 Eliminator - 1988-1994
EX250 Ninja 250R - 1986-1990 + 1992-1995
EX250 Ninja 250R ZZ-R250 - 1996-2007
454 LTD EN450 - 1985-1990
EN500 Vulcan 500 - 1990-1995
EN500 Vulcan 500 LTD - 1996-2009
EX500 - 1987-1993
EX500 Ninja 500R - 1994-2009
KZ550 Spectre - 1983
KZ550 LTD Shaft - 1983-1984
KZ550 GPz H1/H2 - 1982-1983
KZ750N Spectre - 1982-1983
KZ750 LTD Shaft - 1983
ZX750 GPz Turbo - 1984-1985
KZ1000J - 1981-1983
KZ1000 LTD - 1981-1982
KZ1000M CSR - 1981-1982
KZ1000P Police - 1982-2005
KZ1000R Eddie Lawson Replica - 1982-1983
KZ1100A Shaft - 1981-1983
KZ1100B GPz - 1981-1982
KZ1100D Spectre - 1982-1983
KZ1100L Shaft LTD - 1983
ZX1100A GPz - 1983-1984