Regulator / Rectifier - Lithium & Lead Acid - Honda CM200 CB/CM400/450 FT/GB500

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Regulator rectifier for several Honda's and some Kymco 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: 82mm length x 80mm width x 30mm height
Mounting bolt spacing: 66mm (Measured center to center)
Replaces Honda OEM part numbers: 31600-KV8-681, 31600-413-008

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.

Fits Honda:

CH150 Elite - 1987
CM200T Twinstar - 1981-1982
CB400A Hondamatic - 1978
CB400T Hawk - 1980-1981
CB400TI Hawk I - 1978-1979
CB400TII Hawk II - 1978-1979
CM400A Hondamatic - 1979-1981
CM400C Custom - 1981
CM400E - 1980-1981
CM400T - 1979-1981
CB450SC Nighthawk - 1982-1986
CB450T Hawk - 1982
CM450A Hondamatic - 1982-1983
CM450C Custom - 1982
CM450E - 1982-1983
FT500 Ascot - 1982-1983
GB500 Tourist Trophy - 1989-1990

Fits Kymco:

BET AND WIN 150 - 2005-2007
GRAND VISTA 250 - 2004-2010
PEOPLE 250 - 2004-2008
XCITING 250 - 2006-2008