Original Yamaha NMAX 155 Engine Control Unit Assy ECU (2DP-H591A-00) | 2015-2020

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


The ECU acts as the brain of the engine, controlling how fuel, ignition, and timing work together. This original Yamaha NMAX 155 ECU assembly (2DP-H591A-00) restores accurate engine management and stable performance. Manufactured to original Yamaha specifications, it ensures precise control across all operating conditions. A faulty ECU can lead to inconsistent running or poor performance. Replacing it brings the system back into balance and restores reliability.

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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Guaranteed fitment for Yamaha GPD155-A NMAX or free returns.

Product Compatibility

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Part Number
  • 2DP-H591A-00
Alternative Part Number

_

Model
  • GPD155-A NMAX
Year
  • 2015
  • 2016
  • 2017
  • 2018
  • 2019
  • 2020
MFG
  • Yamaha

Product Overview

This high-quality Original Engine Control Unit Assy ECU is designed to meet or exceed factory performance standards and is suitable for Yamaha NMAX 125 (2015-2020) models.

The engine control unit (ECU) is the electronic management centre of the motorcycle, continuously monitoring and adjusting fuel injection timing, ignition advance, and other critical engine parameters to ensure optimal performance, fuel efficiency, and emissions compliance. When the ECU develops a fault, the result can be poor throttle response, rough running, unexpected engine stalling, hard starting, or a complete no-start condition, often accompanied by warning lights on the instrument cluster. This original ECU assembly restores precise engine management and returns your NMAX 125 to its original performance and efficiency.

• Brand New Original Engine Control Unit Assy ECU
• Part Number: 2DP-H591A-00
• Original replacement for Yamaha NMAX 125 (2015-2020)
• Restores precise fuel injection and ignition management for optimal engine performance
• Ensures smooth throttle response, reliable starting, and correct emissions output
• Direct fit, no modification required
• Recommended for engine management diagnosis and scheduled 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 faulty, malfunctioning, or damaged engine control unit
• Replacing the Engine Control Unit Assy ECU during engine management diagnosis or fuel injection system repair
• Mechanics and workshops carrying out Yamaha NMAX 125 engine management and fuel system servicing
• Riders wanting to restore the original engine performance and efficiency of their Yamaha NMAX 125
• Anyone looking for a guaranteed original replacement for their Yamaha NMAX 125

Complete Part Guide

Consistent engine performance depends on precise control. The original Yamaha NMAX155 Engine Control Unit ECU (2DP-H591A-00) for 2015-2020 models manages fuel injection, ignition timing, and system communication to keep the engine running smoothly. It ensures stable operation across daily riding conditions. Built to Yamaha's original standards, it delivers accurate calibration and reliable integration. Available from Part Hive's London hub, with same-day UK dispatch on all orders before 1 PM

ECU faults can be tricky because they don’t always point to one clear issue. We often see symptoms that appear to be separate problems but trace back to this unit. It might run rough, hesitate, or throw warning lights. In the workshop, we rule out everything else before confirming ECU failure. We replace it with the correct original Yamaha engine control unit for your NMAX-155 and it restores proper communication and resolves those inconsistent issues.

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