Original Yamaha NMAX 125 Exhaust Valve & Valve Seal Set (2DP-WB014-00) | 2015-2020

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.


Engine performance depends on how well air and gases move through the system. This original Yamaha NMAX 125 exhaust valve and valve seal set (2DP-WB014-00) helps maintain clean exhaust flow and proper sealing. Designed for a precise fit, it's a simple way to keep your engine running efficiently.

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
  • 2DP-WB014-00
Alternative Part Number

_

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

Product Overview

This high-quality Original Exhaust Valve & Valve Seal Set is designed to meet or exceed factory performance standards and is suitable for Yamaha NMAX 125 (2015-2020) models.

The Exhaust Valve & Valve Seal Set combines the precision-ground exhaust poppet valve and its corresponding valve stem oil seal into a single service kit. The exhaust valve opens on the exhaust stroke to release spent combustion gases and seals the exhaust port during remaining strokes, while the valve stem seal meters oil into the valve guide bore, preventing oil from entering the combustion chamber. When the valve burns or recedes, or the stem seal hardens and cracks, the result is compression loss, increased oil consumption, and blue exhaust smoke. This original replacement is manufactured to original factory specifications, restoring reliable engine performance to your Yamaha NMAX 125 scooter.

- Brand New Original Exhaust Valve & Valve Seal Set
- Part Number: 2DP-WB014-00
- Original replacement for Yamaha NMAX 125 (2015-2020)
- Provides the exhaust valve and valve stem seal together for a complete exhaust valve service in one kit
- Restores correct exhaust port sealing and prevents oil from entering the combustion chamber
- Eliminates compression loss, blue exhaust smoke, and increased oil consumption
- Direct fit, no modification required
- Recommended for replacement during cylinder head overhaul or when compression loss, blue smoke, or oil consumption 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 owners with compression loss, blue exhaust smoke, or increased oil consumption caused by a worn exhaust valve or failed valve stem seal
• Replacing the Exhaust Valve & Valve Seal Set during engine top-end overhaul or cylinder head service
• Mechanics and workshops carrying out Yamaha NMAX 125 engine cylinder head servicing
• Riders wanting to restore the original engine compression and valve performance of their Yamaha NMAX 125 scooter
• Anyone looking for a guaranteed original replacement for their Yamaha NMAX 125 scooter

Complete Part Guide

Increased oil consumption is commonly caused by worn valve seals and poorly sealing exhaust valves, making the Original Yamaha NMAX125 Exhaust Valve & Valve Seal Set (2DP-WB014-00) the correct solution for 2015-2020 models. These issues affect airflow and reduce engine efficiency. This set restores proper sealing and controlled exhaust flow, supporting clean combustion and reducing oil loss. Built to Yamaha's standards, it ensures precise fitment and reliable performance. Available from Part Hive's London warehouse, order before 1 PM for same-day UK dispatch.

When oil consumption increases, valve seals are often the first place we look. Typically, worn seals allow oil to leak into the chamber, while a worn exhaust valve affects how gases are expelled. In the workshop, this is a common issue during engine servicing. Riders may keep topping up oil without fixing the source. We install this original Yamaha NMAX-125 exhaust valve and seal set and it restores proper sealing, ensures a clean flush fit, and keeps engine breathing controlled and efficient.

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