Original Yamaha NMAX 125 Right Starter Control Switch Button Handle (B3F-H3973-02) | 2021-2024

Sale price£21.99 GBP Regular price£27.49 GBP
Save £5.50

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.


Unpredictable starting usually means the switch isn't sending a proper signal anymore. This original Yamaha NMAX 125 right starter control switch (B3F-H3973-02) fixes that by restoring accurate and consistent signal transfer. It ensures the system responds correctly every time. That removes hesitation and missed starts. Starting becomes smooth and dependable again.

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
  • B3F-H3973-02
Alternative Part Number

_

  • B3F-H3973-01
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 is the right-hand handlebar assembly that integrates the electric starter button and associated control functions, giving the rider convenient engine start and system control at their fingertips. When the assembly wears internally or develops electrical faults, the starter button may become unresponsive, preventing the engine from starting, or other control functions may operate intermittently. This original replacement restores reliable starter and control switch operation, ensuring confident engine starting on your NMAX 125.

- Brand New Original Right Starter Control Switch Button Handle
- Part Number: B3F-H3973-02
- Alternative Part Numbers: B3F-H3973-01
- Original replacement for Yamaha NMAX 125 (2021-2024)
- Restores reliable electric starter button and right-side control switch operation
- Ensures consistent and responsive engine start function
- Direct fit, no modification required
- Suitable for handlebar switch repair and scheduled electrical system 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 faulty, unresponsive, or worn starter switch button
• Replacing the Right Starter Control Switch Button Handle during handlebar switch repair or electrical fault diagnosis
• Mechanics and workshops carrying out Yamaha NMAX 125 handlebar switch and electrical system servicing
• Riders wanting to restore the original starter control and switch function of their Yamaha NMAX 125
• Anyone looking for a guaranteed original replacement for their Yamaha NMAX 125

Complete Part Guide

When your NMAX starts behaving inconsistently, sometimes starting, sometimes not, it's often down to worn contacts inside the starter switch. Replacing it with the original Yamaha NMAX125 Right Starter Control Switch Button Handle (Part Number: B3F-H3973-02) for 2021-2024 restores proper electrical flow so the starter motor engages reliably every time. Built to Yamaha's original standards, it ensures accurate fitment and dependable performance. Once sorted, the bike responds exactly as it should. Get it from Part Hive's London hub, with same-day UK dispatch on orders before 1 PM.

The starter control switch button doesn't fail overnight, but the issues build up. On the NMAX-125, we see starter switches wear internally from constant use. Riders notice hesitation but often carry on, pressing the button repeatedly until it works. We test the switch for response time and signal consistency, not just whether it activates. Once we confirm poor contact inside, we install the correct original Yamaha right starter control switch button handle, bringing back a clean signal and restoring proper, reliable starting performance.

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