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10-Tooth Starter Motor for Honda TRX500FA Foreman Rubicon 31200-HN2-003
10-Tooth Starter Motor for Honda TRX500FA Foreman Rubicon 31200-HN2-003
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Product Overview
Replace a worn, weak, noisy, or failed starter motor with this 10-tooth electric starter motor, designed for select Honda TRX500FA FourTrax Foreman Rubicon 500 ATV applications using OEM reference numbers 31200-HN2-003 and 31200-HN2-A01.
The starter motor helps crank the engine when the electric start button is pressed. A failing starter motor may cause slow cranking, clicking, intermittent starting, no-crank issues, grinding noise, or failure to start even when the battery is charged.
This replacement starter motor features a 10-tooth gear and CCW rotation based on supplied product data. Please compare your original starter motor’s OEM number, tooth count, rotation direction, mounting points, electrical terminal, body shape, gear position, and overall design before ordering.
Product Compatibility
| Make | Model | Year Range | OEM / Reference Number | Fitment Notes |
|---|---|---|---|---|
| Honda | TRX500FA FourTrax Foreman Rubicon 500 | 2001–2012 | 31200-HN2-003 / 31200-HN2-A01 | Main fitment; confirm original starter gear and body shape |
| Honda | TRX500FA Foreman Rubicon 499cc | Select 2001–2014 applications | 31200-HN2-003 / 31200-HN2-A01 | Possible extended fitment; verify original part before ordering |
| Honda | TRX500FGA FourTrax Foreman Rubicon GPScape | 2004–2008 | 31200-HN2-003 / 31200-HN2-A01 | Common related fitment; compare starter body and mounting layout |
| Honda | TRX500FPA Foreman Rubicon | Select 2009–2014 applications | 31200-HN2-003 / related references | Possible related fitment only if original starter matches |
| Honda | Foreman Rubicon 500 Platform | Select applications | Verify original starter motor | Match by OEM number, tooth count, rotation, and mounting style |
Important Fitment Note:
This part is not selected by model name alone. Honda TRX500FA, TRX500FGA, TRX500FPA, Foreman Rubicon, and related 500cc ATV models may use different starter motors depending on year, trim, market, engine version, gear count, rotation direction, mounting points, and electrical terminal style. Please confirm your original starter motor matches OEM 31200-HN2-003 or 31200-HN2-A01, the 10-tooth gear, CCW rotation, and overall shape before ordering.
Specifications
| Specification | Details |
| Product Type | Electric Starter Motor |
| Compatible Brand | Honda |
| Main Compatible Model | TRX500FA FourTrax Foreman Rubicon |
| Related Compatible Models | TRX500FGA / TRX500FPA, verify before purchase |
| Engine Platform | 499cc / 500cc Honda ATV Platform |
| Tooth Count | 10 Teeth |
| Rotation Direction | CCW |
| Main OEM References | 31200-HN2-003 / 31200-HN2-A01 |
| Common Voltage | 12V ATV Starting System |
| Common Vehicle Type | ATV / Utility ATV |
| Application | Electric Starting System |
| Fitment Type | Replacement, match by OEM number, tooth count, rotation, and mounting style |
Key Features
- 10-tooth electric starter motor for select Honda TRX500FA Foreman Rubicon ATV applications
- Replaces Honda starter motor references 31200-HN2-003 and 31200-HN2-A01
- Designed for matching Honda Foreman Rubicon 500 electric starting systems
- Helps restore electric start function when the original starter motor is weak, worn, noisy, or failed
- Precision-built replacement style supports stable cranking performance
- Durable starter motor construction supports long service life under normal use
- Direct replacement style, but original gear count, rotation direction, terminal type, and mounting layout must be checked before installation
OEM Cross Reference
| OEM / Reference Number | Notes |
| 31200-HN2-003 | Main Honda TRX500FA starter motor reference |
| 31200HN2003 | Compact format of 31200-HN2-003 |
| 31200-HN2-A01 | Earlier / related Honda starter motor reference |
| 31200HN2A01 | Compact format of 31200-HN2-A01 |
| SMU0314 | Common aftermarket starter motor reference |
| 18610 | Common aftermarket reference on some listings |
| 18666 | Common aftermarket reference on some listings |
| 410-54066 | Common aftermarket reference on some listings |
| CM18666N | Common aftermarket reference on some listings |
Please use the OEM/reference number together with physical fitment checks. If your original starter motor has a different gear tooth count, rotation direction, shaft style, mounting hole layout, electrical terminal, body shape, or mounting position, this part may not fit.
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Fitment FAQ
Will this part fit my specific model and year?
This starter motor is designed for select Honda TRX500FA FourTrax Foreman Rubicon 500 ATV applications when the original starter matches OEM 31200-HN2-003 or 31200-HN2-A01 and the 10-tooth CCW design. Common fitment includes TRX500FA 2001–2012, with possible related fitment on select TRX500FA, TRX500FGA, and TRX500FPA applications when the original starter matches. Please compare your original starter motor before ordering.
Do I need to match the OEM part number?
Yes, matching the OEM or reference number is strongly recommended. This starter motor replaces Honda 31200-HN2-003 and 31200-HN2-A01. However, OEM number alone is not enough. Please also confirm the 10-tooth gear, CCW rotation, mounting layout, shaft position, body shape, and terminal style.
What models or situations does this part not fit?
This part does not fit Honda TRX500, Rancher, Foreman, Rubicon, Rincon, TRX420, TRX450, TRX520, or other ATV models that use a different starter gear count, different rotation direction, different shaft length, different mounting holes, different terminal style, or different starter body. It is also not a replacement for the battery, starter relay, starter clutch, stator, ignition coil, ECU, or complete wiring harness.
What should I check before ordering?
Before ordering, please check your ATV’s make, model, year, trim version, original starter motor OEM number, tooth count, rotation direction, mounting hole layout, electrical terminal, shaft position, starter body shape, and available installation space. For best fitment, compare the product photos and specifications with your original starter motor before purchase.