2020 17-20 LIKE NEW Honda Grom 125 OEM Starter Motor Starting Idler Gear 31200-KPW-901 – Complete Product Overview
The 2020 17-20 LIKE NEW Honda Grom 125 OEM Starter Motor Starting Idler Gear 31200-KPW-901 is an essential OEM replacement part designed specifically for Honda Grom 125 motorcycles from model years 2017 through 2020. Whether you’re repairing a non-starting engine or performing a comprehensive rebuild, this high-quality starter motor and idler gear assembly offers reliable performance and precision fitment. In this detailed product review, we explore its features, compatibility, installation, comparisons with aftermarket alternatives, and why it’s preferred by riders and mechanics alike.
Product Overview – What Is the 2020 17-20 LIKE NEW Honda Grom 125 OEM Starter Motor Starting Idler Gear 31200-KPW-901?
The 2020 17-20 LIKE NEW Honda Grom 125 OEM Starter Motor Starting Idler Gear 31200-KPW-901 is a genuine Honda replacement assembly that includes the starter motor and the idler gear used in the starting system of Honda Grom 125 motorcycles. Built to original factory specifications, this unit ensures accurate fitment and smooth engagement with the engine’s crankshaft and starter drive.
This OEM starter motor and idler gear assembly is sold in a “LIKE NEW” condition, meaning it has minimal wear and operates at or near original performance levels. Honda part number 31200-KPW-901 corresponds to the starter motor assembly designed for Grom models from 2017, 2018, 2019, and 2020, making it an ideal choice for riders restoring or maintaining their bikes.
Key Features & Specifications
OEM Honda Quality
The 2020 17-20 LIKE NEW Honda Grom 125 OEM Starter Motor Starting Idler Gear 31200-KPW-901 is manufactured to the exact same specifications as the original component installed at the factory. This results in a dependable fit and performance that aftermarket substitutes often struggle to match.
Precision-Engineered Starter Motor
This starter motor delivers consistent cranking power, ensuring quick and reliable starts across a range of temperatures and riding conditions. The integration of the starter and idler gear assembly reduces installation time and potential alignment issues.
Idler Gear Engagement
The idler gear in this assembly rotates smoothly and engages with the starter drive and crankshaft effectively. Proper engagement ensures minimal gear wear and helps prevent common starting issues such as grinding or slow cranking.
Like New Condition
The term “LIKE NEW” indicates that the 2020 17-20 LIKE NEW Honda Grom 125 OEM Starter Motor Starting Idler Gear 31200-KPW-901 has been inspected and tested to operate like new, even if it may have been previously installed or lightly used. This condition provides excellent value compared to brand new OEM units.
Why Choose This OEM Starter Assembly?
The 2020 17-20 LIKE NEW Honda Grom 125 OEM Starter Motor Starting Idler Gear 31200-KPW-901 is preferred by many motorcycle owners for several reasons:
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Direct replacement fit: No modification or adaptation required for compatible Grom models.
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Reliable performance: Starts the engine smoothly, even after long periods of inactivity.
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Durability: Designed to Honda’s exact tolerances and materials standards.
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Cost-effective: Like new condition offers savings compared to a new OEM part.
These benefits make this starter motor and gear assembly a smart choice when addressing hard starts or starter system failures.
Installation & Compatibility
Installing the 2020 17-20 LIKE NEW Honda Grom 125 OEM Starter Motor Starting Idler Gear 31200-KPW-901 is straightforward for anyone familiar with basic motorcycle maintenance. Typically, you will:
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Remove the seat and side covers.
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Drain engine oil if required for access.
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Unbolt the old starter motor and idler gear assembly.
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Install the replacement part, ensuring proper engagement and torque specs.
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Reassemble components and test starting function.
This assembly is compatible specifically with Honda Grom 125 models produced from 2017 to 2020, which includes years 17, 18, 19, and 20.
Comparisons With Related Products
New OEM Starter Motor 31200-KPW-901
A brand new OEM starter motor identical to the 2020 17-20 LIKE NEW Honda Grom 125 OEM Starter Motor Starting Idler Gear 31200-KPW-901 provides the same performance but at a higher price point. The like-new option offers similar reliability at a lower cost, making it a better value for many riders.
Aftermarket Starter Motors
Aftermarket starter motors designed for Grom models are often less expensive, but they can vary significantly in materials, tolerances, and gear engagement quality. Riders choosing aftermarket units may experience inconsistent starts or faster wear. The 2020 17-20 LIKE NEW Honda Grom 125 OEM Starter Motor Starting Idler Gear 31200-KPW-901 retains the advantage of Honda’s original engineering.
Rebuilt Starter Assemblies
Some rebuilt starter assemblies are available from third-party vendors. While affordable, these can suffer from variable rebuild quality. The OEM like-new part delivers predictable performance with Honda-standard fit and function.
Pros & Cons
Pros
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Reliable OEM performance
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Precise fitment for 2017–2020 Grom 125 models
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Smooth gear engagement and starting function
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Excellent value in like-new condition
Cons
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Limited to specific Grom model years
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Not a brand new component
Final Thoughts
The 2020 17-20 LIKE NEW Honda Grom 125 OEM Starter Motor Starting Idler Gear 31200-KPW-901 stands out as a dependable, cost-effective replacement for riders experiencing starter issues on their Honda Grom 125. With genuine OEM quality, accurate fitment, and tested like-new performance, this assembly offers both peace of mind and long-term reliability.












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