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Starter Motor for Yamaha Raptor 250 XT250 XG250 3C5-81890-00
Starter Motor for Yamaha Raptor 250 XT250 XG250 3C5-81890-00
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Product Overview
Replace a worn, weak, noisy, or failed starter motor with this 9-tooth electric starter motor, designed for select Yamaha Raptor 250, YFM25R, YFM250R, XT250, Serow 250, and XG250 Tricker applications using OEM reference number 3C5-81890-00.
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 fully charged.
This replacement starter motor features a 9-tooth gear, 48mm mounting hole pitch, and 12mm drive tooth diameter 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 dimensions before ordering.
Product Compatibility
| Make | Model | Year Range | OEM / Reference Number | Fitment Notes |
|---|---|---|---|---|
| Yamaha | Raptor 250 / YFM25R / YFM250R | 2008–2013 | 3C5-81890-00 / 3C5-81890-00-00 | Main ATV fitment; confirm original starter gear and body shape |
| Yamaha | Raptor 250 SE / YFM250SE | Select 2008–2012 applications | 3C5-81890-00 / 3C5-81890-00-00 | Verify 9-tooth gear, mounting pitch, and starter body |
| Yamaha | Raptor 250 SE II / Special Edition II | Select 2008–2009 applications | 3C5-81890-00 / 3C5-81890-00-00 | Possible related fitment; compare original starter before ordering |
| Yamaha | XT250 Dual Sport | Select 2008–2023 applications | 3C5-81890-00 / 3C5-81890-01 | Common motorcycle fitment; verify original starter number |
| Yamaha | XT250 Serow / Serow 250 | Select 2005–2020 applications | 3C5-81890-00 / 3C5-81890-01 | Market-name variation; match by OEM number and starter body |
| Yamaha | XG250 Tricker / Tricker 250 | Select 2005–2018 applications | 3C5-81890-00 / 3C5-81890-01 | Possible related fitment; confirm before purchase |
| Yamaha | 249cc / 250cc Yamaha ATV & Motorcycle Platform | Select applications | Verify original part | Fitment depends on model, year, market, and starter motor version |
Important Fitment Note:
This part is not selected by model name alone. Yamaha Raptor 250, YFM25R, XT250, Serow 250, and XG250 Tricker models may use different starter motor versions depending on year, market, engine version, gear count, rotation direction, mounting points, and electrical terminal style. Please confirm your original starter motor matches OEM 3C5-81890-00 / 3C5-81890-00-00, the 9-tooth gear, 48mm mounting hole pitch, 12mm drive tooth diameter, and overall shape before ordering.
Specifications
| Specification | Details |
| Product Type | Electric Starter Motor |
| Compatible Brand | Yamaha |
| Main Compatible ATV Models | Raptor 250, YFM25R, YFM250R, YFM250SE |
| Main Compatible Motorcycle Models | XT250, Serow 250, XG250 Tricker |
| Engine Platform | 249cc / 250cc Yamaha ATV & Motorcycle Applications |
| Tooth Count | 9 Teeth |
| Mounting Hole Pitch | 48mm / 1.9" |
| Drive Tooth Diameter | 12mm / 0.47" |
| Main OEM Reference | 3C5-81890-00 |
| Full OEM Format | 3C5-81890-00-00 |
| Related / Superseding Reference | 3C5-81890-01 / 3C5-81890-01-00 |
| Compact OEM Format | 3C5818900000 |
| Common Vehicle Type | ATV / Quad / Dual Sport Motorcycle / Trail Motorcycle |
| Application | Electric Starting System |
| Fitment Type | Replacement, match by OEM number, tooth count, mounting style, and starter body |
Key Features
- 9-tooth electric starter motor for select Yamaha Raptor 250, XT250, Serow 250, and XG250 applications
- Designed for matching Yamaha 249cc / 250cc ATV and motorcycle starting systems
- Replaces Yamaha starter motor reference 3C5-81890-00 / 3C5-81890-00-00
- Cross-references with later 3C5-81890-01 / 3C5-81890-01-00 listings on some applications
- Helps restore electric start function when the original starter motor is weak, worn, noisy, or failed
- Built for stable cranking performance and reliable starting response
- Easy replacement style for matching starter systems
- Original OEM number, tooth count, mounting pitch, terminal position, and starter body must be checked before installation
OEM Cross Reference
| OEM / Reference Number | Notes |
| 3C5-81890-00 | Main Yamaha starter motor reference |
| 3C58189000 | Compact format of 3C5-81890-00 |
| 3C5-81890-00-00 | Full Yamaha OEM starter motor reference |
| 3C5818900000 | Compact format of 3C5-81890-00-00 |
| 3C5-81890-01 | Related / superseding Yamaha starter motor reference on some listings |
| 3C58189001 | Compact format of 3C5-81890-01 |
| 3C5-81890-01-00 | Full related / superseding Yamaha OEM format |
| 3C5818900100 | Compact format of 3C5-81890-01-00 |
| XSM2446 | Common aftermarket starter motor reference on some listings; verify before purchase |
| ASMU0446 | Common aftermarket starter motor reference on some listings; verify before purchase |
| 19639 | Common aftermarket starter motor reference on some listings; verify before purchase |
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, drive tooth diameter, 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 Yamaha Raptor 250 / YFM25R / YFM250R ATV models and select XT250, Serow 250, and XG250 Tricker motorcycle applications when the original starter matches OEM 3C5-81890-00 or 3C5-81890-00-00. Please compare your original starter motor’s part number, tooth count, mounting pitch, body shape, mounting points, and electrical terminal 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 Yamaha 3C5-81890-00 and 3C5-81890-00-00. It may also cross-reference with 3C5-81890-01 and 3C5-81890-01-00 on some applications. However, OEM number alone is not enough. Please also confirm the 9-tooth gear, 48mm mounting hole pitch, 12mm drive tooth diameter, shaft position, body shape, and terminal style.
What models or situations does this part not fit?
This part does not fit Yamaha Raptor 350, Warrior 350, Wolverine 350, Big Bear 350, Grizzly 350, Kodiak, YFZ450, Raptor 660, Raptor 700, or other Yamaha 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 or motorcycle’s make, model, year, engine version, original starter motor OEM number, tooth count, mounting hole pitch, drive tooth diameter, 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.