Original Yamaha NMAX 125 Left Switch Handle Indicator & Horn (2DP-H3973-01) | 2015-2020

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


Handlebar switches are used constantly and can wear down over time. This original Yamaha NMAX 125 left handle switch indicator and horn (2DP-H3973-01) restores reliable everyday performance with smooth and responsive controls. Designed for direct fitment, it installs easily and works consistently. If your switch feels worn or unresponsive, replacing it keeps your ride straightforward and dependable.

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
  • 2DP-H3973-01
Alternative Part Number

_

  • 2DP-H3973-00
Model
  • GPD125-A NMAX
Year
  • 2015
  • 2016
  • 2017
  • 2018
  • 2019
  • 2020
MFG
  • Yamaha

Product Overview

This high-quality Original Left Switch Handle Indicator Horn is designed to meet or exceed factory performance standards and is suitable for Yamaha NMAX 125 (2015-2020) models.

The left handlebar switch assembly houses the indicator (turn signal) switch and horn button, giving the rider direct control over road signalling functions. Over time, water ingress, wear on the internal contacts, or accidental damage can cause the indicator switch to become sticky or unresponsive, or the horn button to lose contact, leaving the rider without essential signalling functions. This original replacement restores full indicator and horn operation, ensuring your NMAX 125 signals correctly and safely.

• Brand New Original Left Switch Handle Indicator Horn
• Part Number: 2DP-H3973-01
• Alternative Part Numbers: 2DP-H3973-00
• Original replacement for Yamaha NMAX 125 (2015-2020)
• Restores reliable indicator and horn control from the left handlebar
• Ensures correct turn signalling and audible warning functions
• Direct fit, no modification required
• Ideal 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, sticky, or unresponsive left indicator or horn switch
• Replacing the Left Switch Handle Indicator Horn during handlebar control 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 indicator and horn control of their Yamaha NMAX 125
• Anyone looking for a guaranteed original replacement for their Yamaha NMAX 125

Complete Part Guide

Good riding comes down to simple, reliable control. The original Yamaha NMAX125 Left Handle Switch Indicator and Horn (2DP-H3973-01) for 2015-2020 models keeps your indicators, horn, and lights working smoothly with every press. Positioned for easy access, it allows you to stay focused on the road while managing key functions without effort. Built to Yamaha's original standard, it offers precise input, secure fitment, and dependable performance. Available from Part Hive's London warehouse, order before 1 PM for same-day UK dispatch.

This one's a typical job, where the customer says the indicators are hit or miss or the switch feels off. The first thing we check in the workshop is the switch assembly itself. Most of the time, the contacts have worn unevenly or become contaminated. Riders sometimes try cleaning it or adjusting it, but it doesn’t last. We replace it with the correct original Yamaha left handle switch indicator and horn, and brings back proper response, smooth action, and reliable function on your NMAX-125.

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