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1990–2007 Honda CBR250 CB250 Hornet Jade 250 18-Coil 3-Wire Stator 31120-KY1-003
1990–2007 Honda CBR250 CB250 Hornet Jade 250 18-Coil 3-Wire Stator 31120-KY1-003
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Product Overview
Replace a weak, burned, or failed stator with this 18-coil 3-wire magneto stator, designed for select Honda CBR250, CB250 Hornet, and Jade 250 motorcycles using reference number 31120-KY1-003.
The stator is an important part of the motorcycle charging system. It helps generate electrical power while the engine is running, supporting the battery, lights, ignition system, and other electrical components. If your Honda CBR250, CB250 Hornet, or Jade 250 has weak charging, low battery voltage, dim lights, repeated battery drain, unstable output, or stator-related electrical failure, replacing the stator may help restore normal charging performance.
Built with a metal lamination core and copper windings, this replacement stator is designed for stable conductivity, heat resistance, and long service life. Please compare your original stator’s OEM/reference number, wire count, connector layout, mounting hole distance, and dimensions before ordering.
Product Compatibility
| Make | Model | Year Range | OEM / Reference Number | Fitment Notes |
|---|---|---|---|---|
| Honda | CBR250 / CBR250R / CBR250RR | 1990–1996 | 31120-KY1-003 | Aftermarket-listed fitment; verify original stator before ordering |
| Honda | CBR250R MC19 | 1988–1989 | 31120-KY1-003 | Common OEM-linked application for this reference number |
| Honda | CBR250RR MC22 | 1990–1994 / select 1990–1996 listings | 31120-KY1-003 / related references | Confirm wire count, connector, and stator dimensions |
| Honda | CB250 Hornet / Hornet 250 | 1996–2007 | 31120-KY1-003 / related references | Fits only if original stator matches this 18-coil 3-wire design |
| Honda | Jade 250 / JADE250 | 1991–1994 | 31120-KY1-003 / related references | Compare OEM number, plug style, and physical size |
Important Fitment Note:
Honda CBR250, CB250 Hornet, and Jade 250 models may use different stator versions depending on year, market, model code, and wiring system. Some listings use 31120-KY1-003, while other related CB250 Hornet / Jade / CBR250RR listings may use different references such as 31120-KEA-000, 31120-KBH-003, 31120-KAZ-003, or 31120-KAZ-781. Please confirm your original stator matches the 18-coil / 3-wire layout, DC type, 35mm inner diameter, 92mm outer diameter, 38mm mounting hole distance, and overall shape before ordering.
Specifications
| Specification | Details |
| Product Type | Magneto Stator / Generator Coil |
| Coil Count | 18 Coils / 18 Poles |
| Wire Count | 3 Wire |
| Electrical Type | DC |
| Inner Diameter | 35mm / 1.4" |
| Outer Diameter | 92mm / 3.6" |
| Iron Core Height | 17mm / 0.67" |
| Mounting Hole Distance | 38mm / 1.5" |
| Thickness | 28mm / 1.1" |
| OEM / Reference Number | 31120-KY1-003 |
| Possible Related References | 31120-KEA-000 / 31120-KBH-003 / 31120-KAZ-003 / 31120-KAZ-781 |
| Material | Metal Lamination Core + Copper Winding |
| Application | Motorcycle Charging System |
| Compatible Brand | Honda |
Key Features
- Designed for select Honda CBR250, CB250 Hornet, and Jade 250 motorcycle applications
- Replaces or cross-references 31120-KY1-003 on matching stator systems
- 18-coil 3-wire DC stator helps support stable charging system output
- Helps address weak charging, low battery voltage, dim lights, battery drain, or stator failure
- Copper winding supports stable conductivity and improved heat resistance
- Metal lamination core helps resist rust, corrosion, and deformation
- Direct replacement style, but original OEM number, plug layout, and dimensions must be checked before installation
OEM Cross Reference
| OEM / Reference Number | Notes |
| 31120-KY1-003 | Main reference number provided for this stator |
| 31120KY1003 | Compact format of 31120-KY1-003 |
| 31120-KEA-000 | Possible related reference used on some CB250 Hornet / Jade / CBR250RR stator listings |
| 31120-KBH-003 | Possible related reference used on some CB250 / Jade / CBR250RR stator listings |
| 31120-KAZ-003 | Possible related reference used on some CBR250RR / CB250 Hornet stator listings |
| 31120-KAZ-781 | Possible related reference used on some CBR250RR / CB250 Hornet stator listings |
Please use the reference number together with physical dimensions and connector layout for fitment confirmation. If your original stator has a different wire count, outer diameter, inner diameter, mounting hole spacing, thickness, or connector style, this part may not fit.
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Fitment FAQ
Will this part fit my specific model and year?
This stator is listed for select Honda CBR250 models from 1990–1996, CB250 Hornet models from 1996–2007, and Jade 250 models from 1991–1994. It is also commonly linked to CBR250R MC19 applications using reference number 31120-KY1-003. Because these Honda 250cc models may use different stator versions, please compare your original stator’s reference number, wire count, connector layout, inner diameter, outer diameter, mounting hole distance, and thickness before ordering.
Do I need to match the OEM part number?
Yes, matching the OEM or reference number is strongly recommended. This stator is listed with 31120-KY1-003. However, some CB250 Hornet, Jade 250, and CBR250RR applications may use different related references, so OEM number alone is not enough. Please also confirm the 18-coil 3-wire layout, plug style, inner diameter, outer diameter, mounting hole distance, and stator thickness.
What models or situations does this part not fit?
This part does not fit Honda CBR250, CB250 Hornet, Jade 250, or other Honda models that use a different stator diameter, different wire count, different connector layout, different mounting hole spacing, or a different charging system design. It is also not a replacement for the regulator rectifier, battery, CDI, ignition coil, starter motor, flywheel, or complete wiring harness.
What should I check before ordering?
Before ordering, please check your motorcycle’s make, model, year, model code, OEM/reference number, original stator coil count, wire count, connector shape, inner diameter, outer diameter, mounting hole distance, stator thickness, and overall shape. For best fitment, compare the product photos and specifications with your original stator before purchase.