Honda CT90 CB125S CL125S XL100 6V Rectifier – 31700-102-731
Replacement 6V charging system rectifier for compatible classic Honda motorcycles, including selected CT90, CB125S, CL125S, XL100, CB100, CL100, SL100, SL125 and ST90 models.
Designed to convert alternating current (AC) generated by the motorcycle's alternator into direct current (DC) for battery charging and operation of the electrical system.
Ideal for replacing a faulty, damaged or unreliable original rectifier during classic Honda motorcycle restoration, servicing or electrical repairs.
Features a metal rectifier housing, threaded mounting stud and attached four-wire harness with a white electrical connector.
Features
- Replacement 6V motorcycle charging system rectifier
- Suitable for compatible classic Honda motorcycles
- Converts alternator AC output into DC
- Four-wire electrical connection
- White electrical connector
- Metal rectifier housing
- Threaded mounting stud
- Ideal for battery charging system repairs
- Suitable for classic motorcycle restoration
Specifications
- Product Type: Charging System Rectifier
- Electrical System: 6V
- Function: AC to DC Rectification
- Wiring: 4 Wires
- Connector: White 4-Wire Connector
- Mounting: Threaded Stud
- Housing: Metal
- Quantity: 1 Rectifier Assembly
Honda Model Compatibility
- Honda CT90 Trail – 1974-1979
- Honda CB125S – 1974-1980
- Honda CL125S – 1974
- Honda XL100 – 1974-1976
- Honda CB100 – 1970-1973 (matching rectifier type)
- Honda CL100 – 1970-1973 (matching rectifier type)
- Honda CL100S – 1970-1973 (matching rectifier type)
- Honda SL100 – 1970-1973 (matching rectifier type)
- Honda SL125 – 1971-1973 (matching rectifier type)
- Honda ST90 – 1975 (matching rectifier type)
OEM Reference Numbers
- 31700-102-731
- 31700-107-782
OEM numbers are provided for cross-reference and identification purposes only. This is an aftermarket replacement component and is not a genuine Honda part.
Important Compatibility Information
6V Charging Systems: Designed for compatible 6V electrical systems. Not intended as a direct replacement for a 12V charging system rectifier.
Please compare the original rectifier's wiring colours, connector arrangement, mounting stud and electrical specifications before ordering.
Model-year compatibility depends on the original charging system configuration. Some classic Honda models were manufactured with different rectifier arrangements.
This component performs AC to DC rectification. It should not be assumed to provide the same voltage regulation functions as a modern combined regulator/rectifier.
Disconnect the battery before installation and ensure the charging system wiring is connected correctly.
