Aftermarket Yamaha NMAX 125 Starter Motor Assy (54P-H1890-04) | 2015-2020

Aftermarket
Sale price£34.50 GBP
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Discover the ultimate upgrade for your motorcycle.
Designed with precision engineering, this offers unmatched performance and durability.


From daily commutes to multiple stop-start rides, your starter motor needs to perform without hesitation. This aftermarket Yamaha NMAX 125 starter motor assembly (54P-H1890-04) delivers reliable starting power and smooth cranking every time. Precision-moulded for a direct fit, it matches factory mounting points with no modification needed. It resists wear and maintains stable operation under load. Designed for durability, it keeps your scooter ready to go.

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.

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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.

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Part Number
  • 54P-H1890-04
Alternative Part Number

_

  • 54P-H1890-02
Model
  • GPD125-A NMAX
Year
  • 2015
  • 2016
  • 2017
  • 2018
  • 2019
  • 2020
MFG
  • Yamaha

Product Overview

This high-quality 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 assembly is the electric motor that cranks the engine during start-up, turning the crankshaft through the starter drive gear until combustion begins and the engine runs under its own power. Over time, the carbon brushes wear, the armature windings can develop faults, or the drive mechanism can seize or slip, resulting in sluggish or grinding cranking, intermittent starting, or a complete no-start condition despite a fully charged battery. This quality aftermarket replacement is built to match original specifications, restoring reliable engine cranking and confident starting performance to your NMAX 125.

• Brand New Aftermarket Starter Motor Assy
• Part Number: 54P-H1890-04
• Alternative Part Number: 54P-H1890-02
• Compatible with Yamaha NMAX 125 (2015-2020)
• Restores reliable engine cranking and electric start function
• Direct replacement, no modification required
• Suitable for starting system repair and scheduled engine maintenance
• 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 with a sluggish, grinding, or non-cranking starter motor
• Replacing the Starter Motor Assy during engine starting system repair or electrical fault diagnosis
• Mechanics and workshops carrying out Yamaha NMAX 125 starting system servicing
• Riders wanting to restore reliable engine cranking performance to their 2015-2020 NMAX 125
• Anyone looking for a quality aftermarket replacement for their Yamaha NMAX 125

Complete Part Guide

A strong start comes down to proper cranking power. The aftermarket Yamaha NMAX125 Starter Motor Assembly (54P-H1890-04) for 2015-2020 models delivers consistent torque to get the engine running without hesitation. It's built to handle everyday use while keeping performance steady. Precision-moulded and engineered for fit and function, it installs directly with no modification and aligns with factory mounting points. Available from Part Hive's London hub, with same-day UK dispatch on all orders before 1 PM

We deal with starter motor issues all the time, especially on the NMAX-125 used daily. It usually starts with slower cranking, then turns into a no-start situation. Internal wear is the usual cause. In the workshop, we always check how strong the crank is before replacing anything else. We swap it with a properly engineered, trade-grade starter motor assembly and it fixes the issue properly and keeps everything running as it should.

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