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Starter Motor for Honda CRF250X 2004–2017 | 31200-KSC-671
Starter Motor for Honda CRF250X 2004–2017 | 31200-KSC-671
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Product Overview
Restore dependable starting performance with this 12V electric starter motor, designed for compatible Honda CRF250X off-road motorcycles from 2004 through 2017.
Featuring a 9-tooth drive gear, counterclockwise rotation, and a listed no-load speed of at least 12,500 RPM, this starter motor helps provide smooth and consistent engine cranking when the original unit becomes weak, slow, intermittent, or unable to start the engine.
The durable metal housing and precision-manufactured internal components are designed to withstand repeated starting cycles, engine vibration, heat, dust, and demanding trail-riding conditions. Its direct-replacement configuration helps simplify installation when the OEM number, mounting-hole spacing, terminal position, and physical dimensions match the original starter.
Product Compatibility
| Brand | Model | Model Code | Engine | Year Range |
|---|---|---|---|---|
| Honda | CRF250X | CRF250X | 249cc | 2004–2017 |
| Honda | CRF250X A | Regional model code | 249cc | Selected 2004–2017 model years |
| Honda | CRF250X AC | Regional model code | 249cc | Selected 2004–2017 model years |
Published replacement catalogs list this starter for Honda CRF250X models from 2004 through 2017. Honda parts fiches also identify 31200-KSC-671 as the starter-motor assembly on multiple CRF250X model years.
Model availability and suffix codes can vary by country and production year. Confirm the original part number and physical configuration before ordering.
OEM Cross-Reference Numbers
Honda
- 31200-KSC-671
- 31200KSC671
Aftermarket Cross References
- Arrowhead: SMU0372
- J & N Electrical: 410-54150
- J & N Electrical: 41054150
- Lester/WAI: 18851
- NICHE: 519-CSM2521O
These references are commonly grouped under the same 12V, 9-tooth, counterclockwise starter configuration for the CRF250X.
Your original starter does not need to display every number listed above. However, at least one compatible OEM or confirmed interchange number should match the original unit or the parts catalog for your motorcycle.
Specifications
| Specification | Details |
| Product Type | Electric Starter Motor |
| Voltage | 12V |
| Drive Gear | 9 Teeth |
| Rotation | CCW / Counterclockwise |
| Listed No-Load Speed | ≥12,500 RPM |
| Mounting-Hole Distance | 38.4 mm / 1.51 in |
| Overall Width | 62.4 mm / 2.46 in |
| Starter Type | Permanent Magnet Direct Drive / PMDD |
| Brush Type | Carbon |
| Fitment Type | Direct Replacement |
| Vehicle Type | Off-Road Motorcycle / Dirt Bike |
| Housing Material | Metal |
| Condition | New |
| Package Quantity | 1 Starter Motor |
Published interchange specifications also identify this starter family as a 12V, 9-tooth, CCW PMDD unit.
Rotation descriptions may vary depending on which end of the starter is viewed. Use the OEM number, gear configuration, mounting points, terminal position, dimensions, and product photos together when confirming fitment.
Key Features
- CRF250X-Specific Fitment: Designed for compatible 2004–2017 Honda CRF250X motorcycles using OEM 31200-KSC-671.
- 12V 9-Tooth Configuration: Features a 9-tooth drive gear and counterclockwise rotation for compatible starting systems.
- Reliable Starting Performance: Helps restore consistent engine cranking when the original starter becomes weak, slow, or intermittent.
- Durable Metal Construction: Wear-resistant components support dependable performance under heat, vibration, dust, and off-road riding conditions.
- Direct-Replacement Design: Matches the original-style installation when the OEM number and all physical specifications are correct.
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Passform-FAQ
Passt dieses Teil zu meinem spezifischen Modell und Baujahr?
This starter motor is designed for compatible Honda CRF250X motorcycles from 2004 through 2017.
Your original starter should use OEM number 31200-KSC-671 and match the listed 12V, 9-tooth, counterclockwise configuration, 38.4 mm mounting-hole distance, terminal position, and housing shape.
Model-year availability and suffix codes can vary by country. Do not rely on the production year alone when confirming compatibility.
Muss ich die OEM-Teilenummer verwenden?
Yes. Matching the complete OEM or confirmed interchange number is one of the most reliable ways to verify fitment.
This starter motor replaces or cross-references:
Honda 31200-KSC-671
Honda 31200KSC671
Arrowhead SMU0372
J & N 410-54150
J & N 41054150
Lester 18851
NICHE 519-CSM2521O
Your original starter does not need to display every number listed above. At least one compatible number should match the original unit or the parts catalog for your exact motorcycle.
Do not assume that another Honda starter number beginning with “31200” is interchangeable. The complete part number must match.
Für welche Modelle oder Situationen passt dieser Teil nicht?
This starter motor is not intended for:
Honda CRF250R models
Honda CRF250RX models
Honda CRF250L or CRF250L Rally models
Honda CRF250F models
Motorcycles using a different OEM starter number
Applications requiring a different number of drive teeth
Starters requiring clockwise rotation
Models with different mounting-hole spacing
Applications with a different electrical terminal position
Motorcycles with engine swaps or modified starting systems
Applications where the original starter has a different housing or drive-end shape
Do not assume that every Honda CRF250-series motorcycle uses the same starter motor.
Was sollte ich vor der Bestellung überprüfen?
Before ordering, confirm:
Motorcycle make and complete model
Exact production year
Regional model or suffix code
OEM or confirmed interchange number
12V operating voltage
9-tooth drive gear
Counterclockwise rotation using the same viewing position
38.4 mm / 1.51 in mounting-hole distance
62.4 mm / 2.46 in overall width
Electrical terminal position
Mounting-hole locations
Starter housing and drive-end shape
Condition of the O-rings and sealing surfaces
Also inspect the battery, starter relay, fuse, cables, wiring, ground connections, starter gears, and one-way starter clutch. A fault elsewhere in the starting system can produce symptoms similar to a failed starter motor.