Loncin LC172MM LC170MM 250cc 18-Coil 5-Wire Stator for Jinling JLA-21B

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.