Brand new aftermarket voltage regulator rectifier, part number RMS020-103312, built as a direct replacement for the original unit on the Honda CRF 250 X from 2004 to 2017. It is plug-and-play and a direct fit, so installation is straightforward and no assembly is required.
RMSTATOR use a higher grade of electric components than the original equipment, and state that the quality exceeds the OEM part. Every unit is tested before it is shipped. Usefully, the opposite connector - the main harness side - is included as well, because these connectors are often melted, corroded or defective and are a major cause of repeat electrical problems on this model.
Key Features
- Direct replacement for the original unit - plug-and-play, direct fit
- No assembly required, easy installation
- Higher grade of electric components, quality exceeding OEM
- Every unit tested before shipping
- Opposite connector (main harness side) included
- Compact 4-pin single plug design with 122 mm wires
- Rated to 50 A / 500 W maximum charging current
Technical Specs
| Specification |
Detail |
| Part number |
RMS020-103312 |
| Width |
38 mm |
| Length |
57 mm |
| Height |
19 mm |
| Wires length |
122 mm |
| Number of plugs |
1 |
| Number of pins |
4 |
| Number of wires |
4 |
| Minimum charging voltage |
14.5 V +/- 0.5 V |
| Maximum charging current |
50 A / 500 W |
| Open circuit voltage |
Less than 15 V |
| Operating temperature |
-20 C to 85 C |
Vehicle Fitment Guide
| Make & Model |
Years |
| Honda CRF 250 X |
2004 - 2017 |
OEM Part Number Cross Reference
Aftermarket replacement. OEM part numbers are listed for reference only.
| Part Number |
Manufacturer / Brand |
| 31600-KSC-671 |
Honda |
| 31600-KSC-670 |
Honda |
Frequently Asked Questions
Will this fit without modification?
Yes. It is a direct replacement for the original unit on the Honda CRF 250 X, plug-and-play and a direct fit with no assembly required. To be certain, check the OEM number on your existing unit against 31600-KSC-671 or 31600-KSC-670.
What is included?
The voltage regulator rectifier itself, plus the opposite connector for the main harness side. RMSTATOR include that connector because the original is frequently melted, corroded or defective and is a common cause of repeat electrical faults.
How do I know my old regulator has failed?
With the engine running, a working charging system should reach at least 14.5 V +/- 0.5 V at the battery. A battery that keeps going flat, dim or flickering lights, or a reading that sits well under that figure all suggest the regulator rectifier is at fault.
Is the unit tested before it is sent out?
Yes. RMSTATOR test all products before shipping, and use a higher grade of electric components than the original equipment.
Dispatched from the UK · 12-month warranty · Fitment support from our technical team
