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Loncin LC172MM LC170MM 250cc 18-Coil 5-Wire Stator for Jinling JLA-21B
Loncin LC172MM LC170MM 250cc 18-Coil 5-Wire Stator for Jinling JLA-21B
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Product Overview
Replace a weak, burned, or failed stator with this 18-coil 5-wire magneto stator, designed for select Loncin LC172MM / LC170MM CB and CBD 250cc engines used in Mikilon, BSE, Jinling, XMOTO, EGL, and other compatible 250cc ATV, dirt bike, quad, and off-road vehicle applications.
The stator is an important part of the engine charging and ignition system. It helps generate electrical power while the engine is running, supporting the battery, ignition circuit, lights, and other electrical components. If your Loncin 250cc engine 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 engine code, OEM/reference number, wire count, plug layout, trigger coil position, mounting hole distance, and dimensions before ordering.
Product Compatibility
| Engine / Vehicle Type | Common Application | Reference Number | Fitment Notes |
|---|---|---|---|
| Loncin LC172MM | CB / CBD 250cc engine | JLA-21B-077 / JLA-21B / JLA-923E | Main fitment; confirm original stator size and plug layout |
| Loncin LC170MM | CB / CBD 250cc engine | JLA-21B-077 / JLA-21B / JLA-923E | Fits matching 18-coil 5-wire DC stator version only |
| Mikilon 250cc | Dirt bike / off-road bike | JLA-21B-077 / related reference | Check engine code and wiring before purchase |
| BSE 250cc | Dirt bike / pit bike / ATV | JLA-21B-077 / related reference | Fitment depends on original Loncin engine and stator design |
| Jinling 250cc ATV | JLA-21B / JLA-923E platform | JLA-21B-077 / JLA-21B / JLA-923E | Common listed application; compare plug and dimensions |
| XMOTO 250cc | Dirt bike / ATV / off-road vehicle | JLA-21B-077 / related reference | Fits only if original stator matches this layout |
| EGL 250cc | ATV / dirt bike | JLA-21B-077 / related reference | Verify engine code, wire count, and connector style |
Important Fitment Note:
This part is not selected by engine displacement alone. Many 250cc engines may use different stator designs. Please confirm your original engine code is LC172MM or LC170MM and that the original stator matches the 18-coil / 5-wire layout, DC type, connector style, trigger coil position, and dimensions listed below.
Specifications
| Specification | Details |
| Product Type | Magneto Stator / Generator Coil |
| Coil Count | 18 Coils / 18 Poles |
| Wire Count | 5 Wire |
| Electrical Type | DC |
| Inner Diameter | 29mm / 1.1" |
| Outer Diameter | 88mm / 3.5" |
| Iron Core Height | 18mm / 0.71" |
| Mounting Hole Distance | 41mm / 1.6" |
| Thickness | 26mm / 1.0" |
| Trigger Mounting Hole Distance | 30mm / 1.2" |
| Trigger Mounting Hole Diameter | 6mm / 0.24" |
| Reference Number | JLA-21B-077 / JLA-21B / JLA-923E |
| Compatible Engine Codes | Loncin LC172MM / LC170MM |
| Application | 250cc ATV / Dirt Bike / Quad / Off-Road Vehicle Charging & Ignition System |
Key Features
- Designed for select Loncin LC172MM / LC170MM CB and CBD 250cc engines
- Fits compatible Mikilon, BSE, Jinling, XMOTO, EGL, ATV, dirt bike, quad, and off-road vehicle applications
- Replaces common references JLA-21B-077, JLA-21B, and JLA-923E
- 18-coil 5-wire DC 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
- Includes trigger coil position; original engine code, plug layout, and dimensions must be checked before installation
OEM Cross Reference
| OEM / Reference Number | Notes |
| JLA-21B-077 | Common reference number for LC172MM / LC170MM Loncin 250cc stator applications |
| JLA-21B | Common Jinling 250cc ATV platform reference |
| JLA-923E | Common Jinling / 250cc ATV platform reference |
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, trigger coil position, 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 Loncin LC172MM / LC170MM CB and CBD 250cc engines used in compatible Mikilon, BSE, Jinling, XMOTO, EGL, ATV, dirt bike, quad, and off-road vehicle applications. Fitment cannot be confirmed by year or 250cc engine size alone. Please compare your original stator’s engine code, reference number, wire count, connector layout, inner diameter, outer diameter, mounting hole distance, trigger coil position, and thickness before ordering.
Do I need to match the OEM part number?
A standard vehicle OEM number may not be available for this universal-style 250cc engine stator. Common reference numbers include JLA-21B-077, JLA-21B, and JLA-923E. However, reference number alone is not enough. Please also confirm the 18-coil 5-wire layout, DC electrical type, plug style, inner diameter, outer diameter, mounting hole distance, trigger mounting hole distance, and trigger mounting hole diameter.
What models or situations does this part not fit?
This part does not fit 250cc engines that use a different engine code, different stator diameter, different wire count, different connector layout, different trigger coil position, or different mounting hole spacing. It is also not a replacement for the CDI, ignition coil, regulator rectifier, flywheel, starter motor, or complete wiring harness.
What should I check before ordering?
Before ordering, please check your engine code, original stator reference number, coil count, wire count, connector shape, inner diameter, outer diameter, iron core height, mounting hole distance, trigger mounting hole distance, trigger mounting hole diameter, stator thickness, and overall shape. For best fitment, compare the product photos and specifications with your original stator before purchase.