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1985–2005 Kawasaki KLX250 KLR250 KL250 12-Coil 4-Wire Stator 21003-1121
1985–2005 Kawasaki KLX250 KLR250 KL250 12-Coil 4-Wire Stator 21003-1121
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Product Overview
Replace a weak, burned, or failed stator with this 12-coil 4-wire magneto stator, designed for select Kawasaki KLX250, KLR250, and KL250 motorcycles from 1985–2005.
The stator is an important part of the motorcycle charging and ignition system. It helps generate electrical power while the engine is running, supporting the battery, lights, ignition system, and other electrical components. If your Kawasaki KLX250, KLR250, or KL250 has weak charging, no spark, dim lights, unstable voltage, or stator-related electrical failure, replacing the stator may help restore normal electrical 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 number, wire count, plug layout, mounting hole distance, and dimensions before ordering.
Product Compatibility
| Make | Model | Year Range | OEM Reference | Fitment Notes |
|---|---|---|---|---|
| Kawasaki | KLX250 | 1985–2005 | 21003-1121 | Fits select models using the matching 12-coil 4-wire stator |
| Kawasaki | KLR250 | 1985–2005 | 21003-1121 | Main fitment; confirm original stator size and plug layout |
| Kawasaki | KL250 | 1985–2005 | 21003-1121 | Compare OEM number, wire count, and dimensions before purchase |
| Kawasaki | KL250 / KLR250 / KLX250 | 1985–2003 | 21003-1121 | Common confirmed aftermarket fitment range |
| Kawasaki | KLR250 D Series | Select years | 21003-1121 | Fitment must be confirmed by original stator and connector style |
Important Fitment Note:
This part is not selected by engine size alone. Kawasaki 250cc models may use different stator versions depending on year, market, and wiring system. Please confirm your original stator matches the 12-coil / 4-wire layout, AC type, connector style, 54mm inner diameter, 113mm outer diameter, and 55mm mounting hole distance before ordering.
Specifications
| Specification | Details |
| Product Type | Magneto Stator / Generator Coil |
| Coil Count | 12 Coils |
| Wire Count | 4 Wire |
| Electrical Type | AC |
| Inner Diameter | 54mm / 2.1" |
| Outer Diameter | 113mm / 4.4" |
| Iron Core Height | 6mm / 0.24" |
| Mounting Hole Distance | 55mm / 2.2" |
| Thickness | 22mm / 0.87" |
| OEM Reference | 21003-1121 |
| Material | Metal Lamination Core + Copper Winding |
| Application | Motorcycle Charging / Ignition System |
| Compatible Brand | Kawasaki |
Key Features
- Designed for select Kawasaki KLX250, KLR250, and KL250 motorcycles
- Replaces common OEM reference number 21003-1121
- 12-coil 4-wire AC stator helps support charging and ignition system output
- Helps address weak charging, no spark, dim lights, unstable voltage, or stator failure
- Copper winding supports stable conductivity and improved heat resistance
- Durable metal lamination core helps resist deformation, rust, and corrosion
- Direct replacement style, but original OEM number, plug layout, and dimensions must be checked before installation
OEM Cross Reference
| OEM / Reference Number | Notes |
| 21003-1121 | Common OEM reference for Kawasaki KLX250 / KLR250 / KL250 stator applications |
Please use the OEM 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 plug style, this part may not fit.
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Fitment FAQ
Will this part fit my specific model and year?
This stator is designed for select Kawasaki KLX250, KLR250, and KL250 motorcycles from 1985–2005 using a matching 12-coil 4-wire AC stator setup. Because fitment may vary by market and production version, please compare your original stator’s OEM number, wire count, plug 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 part number is strongly recommended. This stator commonly replaces OEM 21003-1121. However, OEM number alone is not enough. Please also confirm the 12-coil 4-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 Kawasaki KLX250, KLR250, KL250, or other 250cc models that use a different stator diameter, different wire count, different connector layout, different mounting hole spacing, or a different OEM design. It is also not suitable if your issue is caused only by a bad regulator rectifier, weak battery, faulty CDI, damaged ignition coil, burned wiring, or poor ground connection.
What should I check before ordering?
Before ordering, please check your motorcycle’s make, model, year, OEM part 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.