Kawasaki KFX90 89.9cc ATV Starter Motor｜12V 9T CCW｜OE 21163-Y002

This replacement starter motor suits the Kawasaki KFX90 89.9cc ATV, cross-referenced to OE 21163-Y002. It carries a rating of 12V and comes with a 9-tooth counter-clockwise rotation gear.
This compact youth ATV often faces dust and splashes during outdoor use. Many owners run into common starter faults over time. Those issues include sluggish cranking, random no-start events, slipping drive gears and burnt internal coils. Tightly packed copper windings and heavy-duty magnets hold steady cranking torque each time you engage the starter. Its sturdy die-cast aluminum housing and upgraded sealing barriers block mud, splashing water and fine trail dust. This simple protection helps stretch the motor’s working lifespan under tough off-road conditions.
We run practical checks on every finished unit before shipment. Our team verifies rotation direction, gear measurements, mounting layout and electrical output. It matches your factory bolt holes and terminal positions exactly. You can swap out the old unit directly, and no custom drilling or wiring adjustments are needed.
This starter fits well for private ATV riders and local repair garages alike. It brings back solid, consistent starting performance at a reasonable cost. It also lowers the risk of unplanned shutdowns while you are out riding. Take a moment to verify your original starter’s OE number, engine size and rotation direction before placing your order.