Starter Motor for Kawasaki FH451V Small Engines - 12V CCW 10-Tooth
Starter Motor for Kawasaki FH451V Small Engines - 12V CCW 10-Tooth
SKU:410-21077
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Starter Motor for Kawasaki FH451V Small Engines - 12V CCW 10-Tooth
Replaces Kawasaki 21163-7003 and Lester 5952 - 12V, CCW rotation, PMDD
This 12V starter motor is built to OEM specifications for the Kawasaki FH451V small engine, fitted with a 10-tooth drive gear for correct flywheel ring gear engagement. The FH451V is a common V-twin engine found across a range of mowers and outdoor power equipment, and this starter is engineered to match its exact mounting and drive requirements, replacing Kawasaki 21163-7003.
It turns counter-clockwise (CCW) to match the original equipment rotation, making it a straightforward swap for a worn or failed original starter with no modification required to the mounting bracket or wiring loom. Built as a permanent magnet direct drive (PMDD) unit, it measures 92.9mm (3.65 inch) across the field case with a 31.8mm (1.252 inch) gear outside diameter, and mounts on 8mm unthreaded holes in both ears exactly as the factory part does.
Key Features
- 12V permanent magnet direct drive (PMDD) starter
- 10-tooth drive gear for correct flywheel engagement
- Counter-clockwise (CCW) rotation to match OEM spec
- 8mm unthreaded mounting holes in both ears, as per original
- Direct replacement for Kawasaki 21163-7003
- 12-month warranty as standard
Technical Specs
| Specification | Detail |
|---|---|
| Voltage | 12V |
| Rotation | CCW |
| Teeth | 10 |
| Starter Type | PMDD |
| Gear Outside Diameter | 31.8mm (1.252 in) |
| Field Case Length | 92.9mm (3.65 in) |
| Weight | 2.43kg (5.35lbs) |
| Part Number | 410-21077 |
Vehicle Fitment Guide
Please confirm against the OEM part number on your original unit before ordering.
| Make & Model | Years |
|---|---|
| Kawasaki FH451V small engine | All years |
OEM Part Number Cross Reference
Aftermarket replacement. OEM part numbers are listed for reference only.
| Part Number | Manufacturer / Brand |
|---|---|
| 21163-7003 | Kawasaki |
| 5952 | Lester |
| 71-09-5952 | Wilson |
| 5952N | WAI |
| 106-230 | PIC Picture ID |
Frequently Asked Questions
Will this fit without modification?
Yes, this is a direct replacement for the original starter motor on the Kawasaki FH451V engine - mounting points, drive gear and wiring connections match the factory part, so no cutting, drilling or rewiring is needed.
What's included?
One 12V, 10-tooth starter motor, ready to fit. Mounting bolts and wiring are reused from your original unit.
How do I know my old starter has failed?
Common signs include a single clicking noise with no engine turnover, a slow or labouring crank that gets weaker as the battery drains, unusual grinding when the key is turned, or no response at all when starting.
Which engines does this fit?
This starter is built specifically for the Kawasaki FH451V small engine, as used in a range of ride-on mowers and other outdoor power equipment. If your existing starter carries Kawasaki number 21163-7003, or Lester 5952, this is the correct unit.
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