Original Yamaha NMAX 125 Piston Ring Set (B64-E1603-00) | 2015-2024

Sale price£20.95 GBP

Running a Workshop or Delivery Fleet? Unlock Up to 75% Trade Discount.

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


Piston rings play a crucial role in controlling oil and maintaining clean combustion. This original Yamaha NMAX 125 piston ring set (B64-E1603-00) ensures proper oil regulation and consistent engine function. Designed to original Yamaha standards, it fits correctly and performs reliably. Replacing worn rings helps reduce oil consumption and improve efficiency.

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.

Order in the next -- hours -- mins for guaranteed 1 PM Same-Day Dispatch from our London NW10 Hub.
Protect your shift — Back on the road tomorrow.

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

Product Compatibility

Compatibility charts are for reference only. Please compare part numbers and manufacturers' details. Contact us before ordering if unsure to avoid delays or refund charges.

Trademark Disclaimer: All trademarks, brand names, and logos remain the property of their respective owners and are used solely for identification and compatibility purposes. We are an independent retailer and are not affiliated with any authorized dealer or distributor.

Part Number
  • B64-E1603-00
Alternative Part Number

_

  • 2DS-E1603-00
Model
  • GPD125-A NMAX
Year
  • 2015
  • 2016
  • 2017
  • 2018
  • 2019
  • 2020
  • 2021
  • 2022
  • 2023
  • 2024
MFG
  • Yamaha

Product Overview

This high-quality Original Piston Ring Set is designed to meet or exceed factory performance standards and is suitable for Yamaha NMAX 125 (2015-2024) and XMAX 125 (2021-2024) models.

The Piston Ring Set consists of the compression and oil control rings that fit the piston grooves inside the cylinder bore, sealing combustion gases above the piston, maintaining engine compression, and controlling the oil film on the cylinder wall. As the rings wear beyond their service limit, develop gaps, or lose radial tension, combustion blow-by occurs, compression drops, oil burns in the combustion chamber, blue exhaust smoke appears, and overall engine performance deteriorates. This original replacement is manufactured to original specifications, restoring reliable performance to your Yamaha scooters.

- Brand New Original Piston Ring Set
- Part Number: B64-E1603-00
- Alternative Part Number: 2DS-E1603-00
- Original replacement for Yamaha NMAX 125 (2015-2024) and XMAX 125 (2021-2024)
- Restores correct combustion sealing and engine compression
- Helps reduce oil consumption and eliminates blue exhaust smoke
- Direct fit, no modification required
- Recommended for replacement during engine top-end overhaul or when compression loss or oil burning is detected
- 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 and XMAX 125 owners with worn piston rings, low compression, blue exhaust smoke, or increased oil consumption
• Replacing the Piston Ring Set during engine top-end overhaul or scheduled engine maintenance
• Mechanics and workshops carrying out Yamaha NMAX 125 and XMAX 125 engine top-end servicing
• Riders wanting to restore the original engine compression and performance of their Yamaha scooters
• Anyone looking for a guaranteed original replacement for their Yamaha NMAX 125 or XMAX 125 scooter

Complete Part Guide

The piston ring set is what keeps engine oil where it belongs while maintaining proper cylinder pressure. The original Yamaha NMAX125 Piston Ring Set (B64-E1603-00) for 2015-2024 models controls oil distribution within the cylinder while maintaining a tight seal for efficient combustion. It keeps performance clean and controlled. Built to Yamaha's original standard, it offers precise fitment, stable sealing, and reliable durability. Available from Part Hive's London warehouse, order before 1 PM for same-day UK dispatch.

Many engine performance problems on the Yamaha NMAX-125 eventually trace back to piston ring wear. We regularly see worn rings causing poor sealing inside the cylinder, leading to reduced compression, smoke from the exhaust, and weaker engine response. Because the symptoms overlap with other faults, the issue is often missed early on.

During workshop inspections, we check ring condition, sealing pressure, and cylinder wear patterns during strip-downs. Once ring tension drops, combustion efficiency suffers across the entire engine. Replacing them with the correct original Yamaha piston ring set restores proper sealing pressure and helps bring back reliable engine performance.

Get the Right Parts for Your Ride with Part Hive

Finding the perfect part for your motorcycle is easy with Part Hive. Here’s how we make it simple for you:

Wide Selection

From brakes and suspension to mirrors and body fairings, we stock parts for all major motorcycle brands and models.

Easy Fit

Use our filters or search tools to quickly locate parts compatible with your make, model, and year.

Trusted Quality

All our parts are sourced from reliable manufacturers, including high-quality aftermarket options.

Fast Delivery

Order online and get your parts delivered quickly, so you can get back on the road without delay.

Part Hive FAQ

Your Guide to Smooth Rides