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Starter Motor for Suzuki KingQuad 450 500 31100-11H00
Starter Motor for Suzuki KingQuad 450 500 31100-11H00
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Product Overview
Replace a worn, weak, noisy, or failed starter motor with this 9-tooth 12V electric starter motor, designed for select Suzuki KingQuad 450, LT-A450X, KingQuad 500, LT-A500X, and related Suzuki ATV applications using OEM reference number 31100-11H00.
The starter motor helps crank the engine when the electric start button is pressed. A failing ATV 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 12V system, 9-tooth / 9-spline drive, 38.07mm mounting hole spacing, 11.4mm installation gear diameter, 189.55mm length, and 61.97mm width 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 |
|---|---|---|---|---|
| Suzuki | KingQuad 450 / LT-A450X | 2007–2010 | 31100-11H00 / 31100-11H00-000 | Main 450 fitment; confirm original starter gear and body shape |
| Suzuki | KingQuad 450 / LT-A450XZ | 2007–2010 | 31100-11H00 / 31100-11H00-000 | Common related fitment; verify starter body and terminal position |
| Suzuki | KingQuad 500 / LT-A500X | 2009–2015 | 31100-11H00 / 31100-11H00-000 | Main 500 fitment; match by OEM number and starter design |
| Suzuki | KingQuad 500 AXi / LT-A500XP Power Steering | Select 2011–2015 applications | 31100-11H00 / 31100-11H00-000 | Possible EPS fitment; compare original starter before ordering |
| Suzuki | KingQuad 500 / LT-A500X | Select later applications | 31100-11H00 | Possible extended fitment; verify carefully by original part number |
| Suzuki | KingQuad 550 / LT-A550 | Select applications | 31100-11H00 on some aftermarket listings | Possible related fitment only if the original starter matches |
| Suzuki | Suzuki KingQuad 450 / 500 ATV Platform | Select 2007–2014 applications | Verify original part | Supplier-listed range; fitment depends on model, year, trim, and starter version |
Important Fitment Note:
This part is not selected by model name alone. Suzuki KingQuad 450, LT-A450X, KingQuad 500, LT-A500X, EPS / Power Steering, and related KingQuad models may use different starter motors depending on year, market, trim, engine version, gear count, rotation direction, mounting points, and electrical terminal style. Please confirm your original starter motor matches OEM 31100-11H00 / 31100-11H00-000, the 9-tooth / 9-spline drive, mounting layout, gear diameter, and overall shape before ordering.
Specifications
| Specification | Details |
| Product Type | Electric Starter Motor |
| Compatible Brand | Suzuki |
| Main Compatible Models | KingQuad 450, LT-A450X, KingQuad 500, LT-A500X |
| Possible Related Model | KingQuad 550, verify before purchase |
| Voltage | 12V |
| Tooth Count | 9 Teeth / 9T |
| Drive Type | 9-Spline / 9-Tooth style, based on supplied product data |
| Mounting Hole Spacing | 38.07mm / 1.49" |
| Installation Gear Diameter | 11.4mm / 0.44" |
| Length | 189.55mm / 7.46" |
| Width | 61.97mm / 2.43" |
| Main OEM Reference | 31100-11H00 |
| Full OEM Format | 31100-11H00-000 |
| Compact OEM Format | 3110011H00 |
| Aftermarket References | 410-54110 / SMU0421 |
| Common Vehicle Type | ATV / Utility ATV / 4-Wheeler / Quad |
| Application | Electric Starting System |
| Fitment Type | Replacement, match by OEM number, tooth count, mounting style, and starter body |
Key Features
- 9T 12V electric starter motor for select Suzuki KingQuad ATV applications
- Designed for matching Suzuki KingQuad 450, LT-A450X, KingQuad 500, and LT-A500X starter systems
- Replaces Suzuki starter motor reference 31100-11H00 / 31100-11H00-000
- Cross-referenced with aftermarket starter numbers 410-54110 and SMU0421
- Helps restore electric start function when the original starter motor is weak, worn, noisy, or failed
- High-quality component construction helps support wear resistance, durability, and stable cranking performance
- Replacement-style design for matching Suzuki ATV starting systems
- Original OEM number, tooth count, mounting hole spacing, gear diameter, terminal position, and starter body must be checked before installation
OEM Cross Reference
| OEM / Reference Number | Notes |
| 31100-11H00 | Main Suzuki starter motor reference |
| 3110011H00 | Compact format of 31100-11H00 |
| 31100-11H00-000 | Full Suzuki OEM starter motor format |
| 3110011H00000 | Compact format of 31100-11H00-000 |
| 410-54110 | Common aftermarket starter motor reference |
| 41054110 | Compact aftermarket reference |
| SMU0421 | Common Arrowhead / aftermarket starter motor reference |
| SMU-0421 | Alternate aftermarket format |
| 18793 | Common aftermarket starter motor reference on some listings; verify before purchase |
| 18793N | 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, gear diameter, body length, body width, or mounting position, this part may not fit.
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Preguntas frecuentes sobre compatibilidad
¿Esta pieza es compatible con mi modelo y año específicos?
This starter motor is designed for select Suzuki KingQuad 450 / LT-A450X applications when the original starter matches OEM 31100-11H00 or 31100-11H00-000 and the 9T starter design. Please compare your original starter motor’s part number, gear count, body shape, mounting points, and electrical terminal before ordering.
¿Necesito que coincida el número de pieza OEM?
Yes, matching the OEM or reference number is strongly recommended. This starter motor replaces Suzuki 31100-11H00 and 31100-11H00-000. However, OEM number alone is not enough. Please also confirm the 9-tooth / 9-spline drive, mounting hole spacing, installation gear diameter, shaft position, starter body shape, and terminal style.
¿Qué modelos o situaciones no son compatibles con esta pieza?
This part does not fit Suzuki KingQuad, QuadRunner, Vinson, Eiger, Ozark, LTR450, LTZ400, or other Suzuki 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, CDI / ECU, or complete wiring harness.
¿Qué debo verificar antes de hacer un pedido?
Before ordering, please check your ATV’s make, model, year, trim version, EPS / Power Steering configuration, original starter motor OEM number, tooth count, mounting hole spacing, installation gear diameter, electrical terminal, shaft position, starter body length, starter body width, and available installation space. For best fitment, compare the product photos and specifications with your original starter motor before purchase.