1990–2007 Honda CBR250 CB250 Hornet Jade 250 18-Coil 3-Wire Stator 31120-KY1-003

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.