Original Yamaha NMAX 125 Front Stop Brake Light Switch (2DP-H3980-01) | 2015–2020

Sale price£13.50 GBP

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


The front brake switch is responsible for detecting lever input and triggering the brake light at the exact moment required. This original Yamaha NMAX 125 front stop brake light switch (2DP-H3980-01) restores that accuracy with smooth and consistent operation. Designed to original Yamaha specifications, it integrates seamlessly into the braking system. Inconsistent activation can compromise safety. Replacing it ensures precise and dependable signal timing.

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

Product Compatibility

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Part Number
  • 2DP-H3980-01
Alternative Part Number

_

  • 2DP-H3980-00
Model
  • GPD125-A NMAX
Year
  • 2015
  • 2016
  • 2017
  • 2018
  • 2019
  • 2020
MFG
  • Yamaha

Product Overview

This high-quality Original Front Stop Brake Light Switch is designed to meet or exceed factory performance standards and is suitable for Yamaha NMAX 125 (2015-2020) models.

The front stop brake light switch is activated when the front brake lever is squeezed, sending an electrical signal to illuminate the rear brake light and alert following traffic to the rider's braking action. When the switch wears or fails, the brake light may not illuminate when the front brake is applied, creating a serious road safety hazard, or it may remain permanently on, draining the battery and masking an original braking event to vehicles behind. This original replacement restores the original front brake light switch function, ensuring seamless, secure, and reliable operation of your NMAX 125.

• Brand New Original Front Stop Brake Light Switch
• Part Number: 2DP-H3980-01
• Alternative Part Number: 2DP-H3980-00
• Original replacement for Yamaha NMAX 125 (2015-2020)
• Restores correct brake light activation on front lever application
• Direct fit, no modification required
• Recommended for brake lighting repair and scheduled front brake safety 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, stuck, or non-activating front brake light switch
• Replacing the Front Stop Brake Light Switch during brake system repair or MOT failure rectification
• Mechanics and workshops carrying out Yamaha NMAX 125 brake lighting system servicing
• Riders wanting to restore the original front brake light function of their 2015-2020 NMAX 125
• Anyone looking for a guaranteed original replacement for their Yamaha NMAX 125

Complete Part Guide

In daily riding, you rely on your brake light more than you think. The original Yamaha NMAX125 Front Brake Light Switch (2DP-H3980-01) for 2015–2020 models makes sure it activates every time you slow down using the front brake. Whether you’re filtering through traffic or stopping at junctions, that consistency keeps you visible and predictable. Built to Yamaha’s original standard, it fits properly and performs reliably in real-world conditions. Available now from Part Hive's London hub, with fast same-day UK dispatch on orders before 1 PM.

Over time, exposure to moisture, dust, and constant use takes its toll on this brake light switch. A common problem we see is reduced responsiveness or complete failure. In the workshop, it’s something that comes up regularly on older or high-mileage NMAX-125 models. Riders sometimes try cleaning connections or adjusting components, but the issue usually comes back. We replace it with the original Yamaha front brake light switch and it fits exactly as it should, maintains proper contact alignment, and restores dependable brake light operation straight away.

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