Original Yamaha NMAX 125 Spark Plug CPR8EA-9 (94700-00415-00) | 2015-2020

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


Misfires or hard starting usually come from a weak or inconsistent spark. This original Yamaha NMAX 125 spark plug CPR8EA-9 (94700-00415-00) fixes that by restoring a strong, stable ignition spark. It ensures proper combustion inside the engine. That allows fuel to burn cleanly and evenly. The result is quicker starts and smoother running.

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
  • 94700-00415-00
Alternative Part Number

_

Model
  • GPD125-A NMAX
Year
  • 2015
  • 2016
  • 2017
  • 2018
  • 2019
  • 2020
  • 2021
MFG
  • Yamaha

Product Overview

This high-quality Original Spark Plug CPR8EA-9 is designed to meet or exceed factory performance standards and is suitable for Yamaha NMAX 125 (2015-2021) models.

The CPR8EA-9 spark plug generates the electrical spark needed to ignite the air-fuel mixture in the engine, driving the combustion process that powers the motorcycle. Over time, the central electrode erodes and carbon deposits build on the plug face, weakening the spark and causing rough idling, misfires, reduced fuel economy, and poor cold-start performance. This original CPR8EA-9 replacement restores reliable ignition and smooth engine performance to your NMAX 125.

- Brand New Original Spark Plug CPR8EA-9
- Part Number: 94700-00415-00
- Original replacement for Yamaha NMAX 125 (2015-2021)
- Restores reliable ignition for smooth and efficient engine operation
- Helps maintain consistent fuel economy and cold-start performance
- Direct fit, no modification required
- Recommended for scheduled engine servicing and routine ignition 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 worn, fouled, or misfiring spark plug
• Replacing the Spark Plug CPR8EA-9 during scheduled engine servicing or routine maintenance
• Mechanics and workshops carrying out Yamaha NMAX 125 engine and ignition 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

If your NMAX is slower to start, misfiring, or not running as smoothly as it should, the spark plug is often the cause, as it's responsible for igniting the air-fuel mixture inside the engine. Replacing it with the original Yamaha NMAX125 Spark Plug CPR8EA-9 (Part Number: 94700-00415-00) for 2015-2020 restores a strong, consistent spark for proper combustion. A healthy spark plug keeps the engine starting cleanly and running smoothly across everyday riding. Manufactured to original Yamaha specification, it ensures precise fitment and reliable ignition performance. Available from Part Hive's London hub, with same-day UK dispatch on all orders before 1 PM.

When performance drops on the NMAX-125, we check the spark plug early. It's responsible for igniting the fuel-air mixture, so its condition directly affects engine behaviour. A worn plug causes weak ignition, leading to rough running and loss of efficiency. Riders often try fuel changes or ride through it, but the issue remains. We remove the plug, inspect the electrode gap and test spark consistency. Once it's not firing correctly, we install a fresh original Yamaha spark plug. That restores strong ignition, improves combustion, and keeps the engine running smoothly and efficiently.

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