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1993–1999 Kawasaki KLF400 Bayou 400 18-Coil 3-Wire Stator 21003-1243
1993–1999 Kawasaki KLF400 Bayou 400 18-Coil 3-Wire Stator 21003-1243
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Product Overview
Replace a weak, burned, or failed stator with this 18-coil 3-wire magneto stator, designed for select 1993–1999 Kawasaki KLF400 Bayou 400 ATV models using OEM reference number 21003-1243.
The stator is an important part of the ATV charging system. It helps generate electrical power while the engine is running, supporting the battery, lights, ignition system, and other electrical components. If your Kawasaki Bayou 400 has weak charging, low battery voltage, dim lights, repeated battery drain, unstable output, or stator-related 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 number, wire count, plug layout, mounting hole distance, and dimensions before ordering.
Product Compatibility
| Make | Model | Year Range | OEM Reference | Fitment Notes |
|---|---|---|---|---|
| Kawasaki | KLF400 Bayou 400 | 1993–1999 | 21003-1243 | Main fitment; confirm original stator size and plug layout |
| Kawasaki | KLF400B Bayou 400 4x4 | 1993–1999 | 21003-1243 | Common 4x4 application; verify connector and dimensions |
| Kawasaki | KLF 400 Bayou 400 | 1993–1999 | 21003-1243 | Model-name variation; match by OEM number and original stator |
| Kawasaki | Bayou 400 ATV / 4 Wheeler / Quad | 1993–1999 | 21003-1243 | Fits only matching 18-coil 3-wire stator version |
Important Fitment Note:
This part is not selected by ATV model name alone. Kawasaki KLF400 Bayou 400 models may use different charging components depending on year, market, and wiring condition. Please confirm your original stator matches OEM 21003-1243, the 18-coil / 3-wire layout, DC type, connector style, 54mm inner diameter, 115mm outer diameter, 55mm 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 | 54mm / 2.1" |
| Outer Diameter | 115mm / 4.5" |
| Iron Core Height | 16mm / 0.63" |
| Mounting Hole Distance | 55mm / 2.2" |
| Thickness | 28mm / 1.1" |
| OEM Reference | 21003-1243 |
| Material | Metal Lamination Core + Copper Winding |
| Application | ATV Charging System |
| Compatible Brand | Kawasaki |
Key Features
- Designed for select 1993–1999 Kawasaki KLF400 Bayou 400 ATV models
- Replaces OEM reference number 21003-1243
- 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
- Suitable for Bayou 400 ATV, 4-wheeler, quad, and 4x4 applications using the matching stator design
- Copper winding supports stable conductivity and improved heat resistance
- Direct replacement style, but original OEM number, connector layout, and dimensions must be checked before installation
OEM Cross Reference
| OEM / Reference Number | Notes |
| 21003-1243 | Main Kawasaki OEM reference for compatible KLF400 Bayou 400 stator applications |
| 210031243 | Compact format of 21003-1243 |
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 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 designed for select 1993–1999 Kawasaki KLF400 Bayou 400 ATV models using OEM reference number 21003-1243. Please compare your original stator’s OEM number, wire count, connector layout, inner diameter, outer diameter, mounting hole distance, thickness, and overall shape before ordering.
Do I need to match the OEM part number?
Yes, matching the OEM part number is strongly recommended. This stator replaces Kawasaki OEM 21003-1243. However, OEM number alone is not enough. Please also confirm the 18-coil 3-wire layout, DC electrical type, 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 Bayou, KLF, Prairie, Brute Force, or other ATV 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 ATV’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.