Original Yamaha NMAX 125 Starter Relay Assy (5TP-H1940-00) | 2015-2024

Sale price£20.95 GBP

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


Every ride begins with a reliable start, and the relay plays a key role in making that happen. This original Yamaha NMAX 125 starter relay assembly (5TP-H1940-00) delivers consistent performance and smooth operation under daily use. Manufactured to original Yamaha specifications, it ensures secure fitment and long-term reliability. If your scooter struggles to start, the relay may be the issue. Replacing it keeps your NMAX ready every time.

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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Protect your shift — Back on the road tomorrow.

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

Product Compatibility

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Part Number
  • 5TP-H1940-00
Alternative Part Number

_

Model
  • GPD125-A NMAX
Year
  • 2015
  • 2016
  • 2017
  • 2018
  • 2019
  • 2020
  • 2021
  • 2022
  • 2023
  • 2024
MFG
  • Yamaha

Product Overview

This high-quality Original Starter Relay Assy is designed to meet or exceed factory performance standards and is suitable for Yamaha NMAX 125 (2015-2024) models.

The starter relay assembly is an electromagnetic switching unit that connects the high-current battery supply directly to the starter motor when the rider presses the start button, allowing the engine to be cranked without running heavy current through the handlebar switch gear. When the relay contacts burn, pit, or weld together, the motorcycle may fail to start with no response from the starter motor, produce a rapid clicking sound instead of cranking, or in the case of welded contacts, attempt to start continuously. This original replacement restores the original starter circuit switching function, ensuring seamless, secure, and reliable operation of your NMAX 125.

• Brand New Original Starter Relay Assy
• Part Number: 5TP-H1940-00
• Original replacement for Yamaha NMAX 125 (2015-2024)
• Restores correct high-current switching for the starter motor circuit
• Direct fit, no modification required
• Ideal for starting circuit fault diagnosis and scheduled electrical system servicing
• 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 clicking, unresponsive, or faulty starter relay
• Replacing the Starter Relay Assy during engine starting system diagnosis or electrical repair
• Mechanics and workshops carrying out Yamaha NMAX 125 starting circuit servicing
• Riders wanting to restore the original starter relay function of their 2015-2024 NMAX 125
• Anyone looking for a guaranteed original replacement for their Yamaha NMAX 125

Complete Part Guide

Starting your NMAX should be simple and consistent every time. The original Yamaha NMAX125 Starter Relay Assembly (5TP-H1940-00) for 2015-2024 models ensures steady power delivery from the battery to the starter motor, supporting smooth and dependable ignition. It's a key component that keeps your scooter ready to go when you need it. Built to Yamaha's original standard, it offers reliable performance, secure connections, and long-term durability. Available now from Part Hive's London hub, order before 1 PM for same-day UK dispatch.

We regularly get NMAX-125s in with that classic “click but no crank” issue. In the workshop, this comes up a lot, especially on bikes used daily. The relay contacts wear out or build resistance, so power isn’t transferred properly. Riders usually try jump-starting or replacing the battery, but it doesn’t fix it. We replace it with the correct original Yamaha starter relay assembly and it solves the issue; tight connections, proper contact pressure, and full current delivery are restored.

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