Original Yamaha NMAX 125 Radiator Assembly (B65-E240A-00) | 2015-2020

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


Excess heat puts unnecessary stress on engine components over time. This original Yamaha NMAX 125 radiator assembly (B65-E240A-00) fixes that by removing heat efficiently from the system. It keeps airflow and coolant working together properly. That prevents overheating during daily riding. The engine stays protected and performs as it should.

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 GPD125-A NMAX or free returns.

Product Compatibility

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Part Number
  • B65-E240A-00
Alternative Part Number

_

  • B3F-E240A-00
Model
  • GPD125-A NMAX
Year
  • 2015
  • 2016
  • 2017
  • 2018
  • 2019
  • 2020
MFG
  • Yamaha

Product Overview

This high-quality Original Radiator Assembly is designed to meet or exceed factory performance standards and is suitable for Yamaha NMAX 125 (2015-2020) models.

The radiator assembly is the central component of the liquid cooling system on the NMAX 125, circulating engine coolant through its core to dissipate heat generated during combustion and maintain optimal engine operating temperature. A damaged, cracked, or corroded radiator can cause coolant loss, persistent overheating, and serious engine damage if left unaddressed. This original replacement is manufactured to original factory specifications, ensuring correct coolant flow, precise fitment, and the heat transfer performance required to keep the NMAX 125 engine running at a safe and efficient operating temperature.

- Brand New Original Radiator Assembly
- Part Number: B65-E240A-00
- Alt Part Number: B3F-E240A-00
- Original replacement for Yamaha NMAX 125 (2015-2020)
- Supports consistent engine performance under varying riding conditions
- Prevents engine overheating and maintains correct operating temperature
- Manufactured to original factory dimensions and coolant flow specifications
- Direct fit, no modification required
- Ideal replacement during cooling system service or following radiator damage or leakage
- 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 damaged, leaking, or corroded radiator assembly
• Replacing the Radiator Assembly during cooling system overhaul or engine service
• Mechanics and workshops carrying out Yamaha NMAX 125 cooling system servicing
• Riders wanting to restore the original cooling performance and reliability of their Yamaha NMAX 125
• Anyone looking for a guaranteed original replacement for their Yamaha NMAX 125

Complete Part Guide

Keeping engine temperature under control isn't just about performance, it's about protecting the engine over time. The original Yamaha NMAX125 Radiator Assembly (Part Number: B65-E240A-00) for 2015-2020 ensures consistent cooling by efficiently dissipating heat during operation. Manufactured to original Yamaha specification, it delivers precise fitment and reliable durability. Proper cooling helps reduce long-term wear on internal components. Available from Part Hive's London hub, with same-day UK dispatch on all orders before 1 PM.

Riders often think overheating is just a coolant issue, but we look deeper. On the NMAX-125, we frequently find the radiator losing efficiency from debris buildup or internal restriction. That reduces how well it dissipates heat. Riders may top up and keep riding, but the temperature keeps climbing. We check airflow, inspect fin condition, and confirm coolant flow through the system. Once the radiator isn't performing as it should, we fit the original Yamaha radiator assembly, restoring proper cooling and stable engine operation.

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