This is a brand new aftermarket stator for the Honda CB 250 Nighthawk, built as a direct replacement for the original charging coil assembly. It is supplied with the connector and the rubber grommet already fitted, so it goes into the engine case in place of the original and plugs into the existing loom with no modification, no rewiring and no splicing.
The Nighthawk is a long lived commuter and many surviving examples are now well past the point where the original windings can be trusted. RMSTATOR build this replacement with the highest grade lamination materials and highest grade copper windings rated to 200 degrees Celsius. The opposite connector - the main harness side of the plug - is included as well, because on a bike that has run with a charging fault that half is very often melted or corroded, and reusing it is a frequent cause of a repeat failure. Every unit is tested before it is shipped.
Key Features
- Brand new aftermarket stator - a direct replacement for your original unit
- Plug-and-play, direct fit, easy installation with no modification required
- Highest grade lamination materials for a stable magnetic circuit
- Highest grade copper windings, resistant to 200 degrees Celsius
- Connector and rubber grommet included
- Every unit is tested before it is shipped
- Six wire configuration matching the original harness
- Opposite connector (main harness side) supplied as well, so both halves of the plug are renewed
Technical Specs
| Specification |
Detail |
| Interior diameter |
35 mm |
| Exterior diameter |
93 mm |
| Thickness |
18 mm |
| Length of wires stator to grommet |
120 mm |
| Length of wires grommet to plug |
760 mm |
| Number of wires |
6 |
| Number of plugs |
4 |
| Number of pins |
6 |
| Alternator resistance |
Between each yellow = 0.4 ohms +-20% |
| Source resistance |
Black/Red to ground = 200 ohms +-20% |
| Winding temperature rating |
Resistant to 200 degrees Celsius |
Vehicle Fitment Guide
Years shown are the overall coverage span for this part. Please confirm against the OEM part number on your original unit before ordering.
| Make & Model |
Years |
| Honda CB 250 Nighthawk |
1991-2008 |
OEM Part Number Cross Reference
Aftermarket replacement. OEM part numbers are listed for reference only.
| Part Number |
Manufacturer / Brand |
| 31120-KBG-004 |
Honda |
Frequently Asked Questions
Will this stator fit without modifying my bike?
Yes. It is a direct, plug-and-play replacement for the original. The dimensions, the six wire layout and the connectors follow the factory specification, so it bolts in and plugs in with no cutting or splicing.
What is included in the box?
The stator, the connector, the rubber grommet, and in addition the opposite connector for the main harness side so both halves of the plug can be renewed together.
How do I know my old stator has failed?
The classic symptoms are a battery that keeps going flat, headlights that dim instead of brightening as the revs rise, and a bike that starts fine but will not restart after a long ride. Check with a multimeter: between each pair of yellow wires you should read about 0.4 ohms, and the black/red source wire should read about 200 ohms to ground. Any winding that shows continuity to the engine case is shorted.
Does this part suit the whole 1991 to 2008 production run?
The years given are the overall coverage span for this stator. RMSTATOR list it against the CB 250 Nighthawk across that period, but please confirm the OEM part number on your original unit before ordering.
Dispatched from the UK · 12-month warranty · Fitment support from our technical team
