Aftermarket Yamaha NMAX 125 Starter Motor Assembly (54P-H1890-02) | 2015-2020

Aftermarket
Sale price£34.50 GBP

Running a Workshop or Delivery Fleet? Unlock Up to 75% Trade Discount.

Discover the ultimate upgrade for your motorcycle.
Designed with precision engineering, this offers unmatched performance and durability.


Slow or hesitant starting is usually caused by a worn starter motor struggling to turn the engine properly. This aftermarket Yamaha NMAX 125 starter motor assembly (54P-H1890-02) fixes that by delivering strong, consistent cranking power. Precision-moulded and engineered for fit and function, it matches factory mounting points for a direct fit with no modification. It spins the engine at the correct speed. That allows the bike to start quickly and reliably.

Vetted by our Lead Engineer. Leveraging 30 years of mechanical pedigree, every part is inspected for material density and exact tolerances to ensure a 'Right-First-Time' fit.

Order in the next -- hours -- mins for guaranteed 1 PM Same-Day Dispatch from our London NW10 Hub.
Protect your shift — Back on the road tomorrow.

Guaranteed fitment for Yamaha GPD125-A NMAX or free returns.

Product Compatibility

Compatibility charts are for reference only. Please compare part numbers and manufacturers' details. Contact us before ordering if unsure to avoid delays or refund charges.

Trademark Disclaimer: All trademarks, brand names, and logos remain the property of their respective owners and are used solely for identification and compatibility purposes. We are an independent retailer and are not affiliated with any authorized dealer or distributor.

Part Number
  • 54P-H1890-02
Alternative Part Number

_

Model
  • GPD125-A NMAX
Year
  • 2015
  • 2016
  • 2017
  • 2018
  • 2019
  • 2020
MFG
  • Yamaha

Product Overview

This high-quality Original Starter Motor Assy is designed to meet or exceed factory performance standards and is suitable for Yamaha NMAX 125 2015-2020 models.

The Starter Motor Assy is the electric motor responsible for cranking the engine during startup. A worn or failed starter motor can result in slow cranking, failure to start or no response when the starter button is pressed. This original replacement is manufactured to original factory specifications, ensuring correct fitment, reliable engine cranking, and starting performance.

- Brand New Original Starter Motor Assy
- Part Number: 54P-H1890-02
- Alternative Part Numbers: 54P-H1890-04
- Original replacement for Yamaha NMAX 125 (2015-2020)
- Cranks the engine to initiate reliable starting
- Eliminates slow cranking or no-start caused by a failed starter motor
- Plug-and-play fitment, no modification required
- Essential for starting system repair or engine rebuild
- London: Express same-day delivery (2-3 hours)
- Rest of UK: Same-day dispatch on orders before 1 PM (3-4 business days delivery).
- Up to 75% off for B2B Trade Accounts. Independent UK garages, apply now.

• Yamaha NMAX 125 owners experiencing slow cranking, failure to start or starter motor failure
• Replacing the Starter Motor Assy due to wear, failure or electrical faults
• Mechanics and workshops carrying out Yamaha NMAX 125 starting system repairs
• Riders wanting to restore reliable engine cranking and starting performance
• Those after a guaranteed original replacement for the Yamaha NMAX 125

Complete Part Guide

With daily commuting and constant starts, the starter motor gradually loses strength over time. Replacing it with the aftermarket Yamaha NMAX125 Starter Motor Assembly (Part Number: 54P-H1890-02) for 2015-2020 restores full cranking power so the engine turns over cleanly again. Engineered for fit and function, it matches factory mounting points for direct installation. Built for durability and vibration resistance, it maintains reliable performance under real-world conditions. Once fitted, starting feels stronger and more consistent. Order from Part Hive's London hub with same-day UK dispatch on all orders before 1 PM.

When a NMAX-125 won't start properly, the starter motor is one of the first things we check. We often see worn motors struggling to turn the engine, especially on daily London bikes. That leads to slow cranking or no start at all. Riders usually keep pressing the starter or blame the battery, but it doesn't fix it. We test the system properly, check the voltage supply, and confirm motor failure. Once identified, we fit a trade-grade aftermarket Yamaha starter motor assembly, engineered for fit and function with direct factory mounting. That restores strong cranking and keeps the starting system reliable.

Get the Right Parts for Your Ride with Part Hive

Finding the perfect part for your motorcycle is easy with Part Hive. Here’s how we make it simple for you:

Wide Selection

From brakes and suspension to mirrors and body fairings, we stock parts for all major motorcycle brands and models.

Easy Fit

Use our filters or search tools to quickly locate parts compatible with your make, model, and year.

Trusted Quality

All our parts are sourced from reliable manufacturers, including high-quality aftermarket options.

Fast Delivery

Order online and get your parts delivered quickly, so you can get back on the road without delay.

Part Hive FAQ

Your Guide to Smooth Rides