Original Yamaha NMAX 125 Right Starter Control Switch Button Handle (B3F-H3973-01) | 2021-2024

Sale price£40.95 GBP

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Designed with precision engineering, this offers unmatched performance and durability.


When the starter switch doesn't respond straight away, it's usually down to worn internal contacts. This original Yamaha NMAX 125 right starter control switch (B3F-H3973-01) fixes that by restoring a clean, reliable electrical connection. It ensures the signal reaches the starter system immediately. That allows the engine to engage without delay. The bike starts as soon as you press the button.

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

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Part Number
  • B3F-H3973-01
Alternative Part Number

_

  • B3F-H3973-02
Model
  • GPD125-A NMAX
Year
  • 2021
  • 2022
  • 2023
  • 2024
MFG
  • Yamaha

Product Overview

This high-quality Original Right Starter Control Switch Button Handle is designed to meet or exceed factory performance standards and is suitable for Yamaha NMAX 125 (2021-2024) models.

The right starter control switch button handle houses the electric starter button and other handlebar control functions on the right side, providing the rider with intuitive access to engine start and key operating controls. A faulty or worn switch assembly can result in an unresponsive starter button, intermittent starting problems, or loss of other right-side control functions. This original replacement ensures smooth and dependable right-side handlebar control, restoring the original starter and switch button operation to your NMAX 125.

- Brand New Original Right Starter Control Switch Button Handle
- Part Number: B3F-H3973-01
- Alternative Part Numbers: B3F-H3973-02
- Original replacement for Yamaha NMAX 125 (2021-2024)
- Restores dependable starter button and right-side handlebar control function
- Prevents intermittent starting issues caused by a worn or faulty switch assembly
- Direct fit, no modification required
- Recommended for handlebar switch repair 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 worn, sticky, or non-functioning right starter switch button
• Replacing the Right Starter Control Switch Button Handle during handlebar switch repair or electrical system servicing
• Mechanics and workshops carrying out Yamaha NMAX 125 handlebar switch and electrical system servicing
• Riders wanting to restore the original starter switch function of their Yamaha NMAX 125
• Anyone looking for a guaranteed original replacement for their Yamaha NMAX 125

Complete Part Guide

Every start begins with the handlebar switch sending power to the starter motor, and if that signal becomes weak or inconsistent, the bike won't respond properly. Fitting the original Yamaha NMAX125 Right Starter Control Switch Button Handle (Part Number: B3F-H3973-01) for 2021-2024 restores a clean, reliable connection for smooth engine start-up. Manufactured to Yamaha's original specification, it ensures correct fitment and consistent performance. A proper switch makes all the difference to everyday usability. Available now at Part Hive's London hub, with same-day UK dispatch on all orders before 1 PM.

When the start feels delayed or inconsistent on the NMAX-125, we don't ignore it. The starter control switch is responsible for sending that initial signal, and wear inside can interrupt it. Riders often think it's minor or keep pressing until it works. We check button response, test current flow through the switch, and confirm if contact is weak. Once it's not responding cleanly, we install the correct original Yamaha right starter control switch button handle, restoring a sharp, consistent signal and ensuring the bike starts as it should every time.

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