Original Yamaha NMAX 125 Clutch Nut (90170-12803) | 2015-2025

Sale price£5.95 GBP

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


Inside the clutch, nothing stands still. Everything is spinning, loading up, and pushing against each other. This original Yamaha NMAX 125 clutch nut (90170-12803) is what keeps that chaos under control. It holds the assembly exactly where it needs to be, so the system doesn't shift, flex, or lose alignment when it's working hard.

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.

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Part Number
  • 90170-12803
Alternative Part Number

_

  • 90170-12802, 90170-12800
Model
  • GPD125-A NMAX
Year
  • 2015
  • 2016
  • 2017
  • 2018
  • 2019
  • 2020
  • 2021
  • 2022
  • 2023
  • 2024
  • 2025
MFG
  • Yamaha

Product Overview

This high-quality Original Clutch Nut is designed to meet or exceed factory performance standards and is suitable for Yamaha NMAX 125 (2015-2025) models.

The clutch nut is the securing fastener that retains the variator or clutch assembly on the drive shaft, maintaining correct clamping force and preventing loosening under the rotational and vibrational loads of CVT operation. A loose, worn, or cross-threaded clutch nut allows the variator or clutch assembly to move on the shaft, leading to vibration, rattling, improper belt engagement, and potential drivetrain failure. This original replacement restores factory clamping integrity to the assembly, ensuring secure retention of the variator or clutch components and safe, consistent CVT operation on your Yamaha NMAX 125.

- Brand New Original Clutch Nut
- Part Number: 90170-12803
- Alt Part Numbers: 90170-12802, 90170-12800
- Original replacement for Yamaha NMAX 125 (2015-2025)
- Ensures correct clamping force and secure retention of the variator or clutch assembly
- Helps prevent drivetrain loosening, vibration, and improper belt engagement
- Direct fit, no modification required
- Ideal replacement during CVT variator service, clutch overhaul, or belt replacement
- 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 loose, worn, or cross-threaded clutch nut
• Replacing the Clutch Nut during CVT variator service, clutch overhaul, or belt replacement
• Mechanics and workshops carrying out Yamaha NMAX 125 CVT drivetrain servicing
• Riders wanting to restore secure and reliable CVT assembly retention to their Yamaha NMAX-125
• Those seeking a guaranteed original replacement for their Yamaha NMAX125

Complete Part Guide

This isn't just about tightening things up; it's about holding steady under constant rotation, and that's where the original Yamaha NMAX125 Clutch Nut (90170-12803) comes in for 2015-2025 models. It keeps the clutch assembly locked in place even at speed, stopping any unwanted movement. That stability helps prevent imbalance and uneven wear over time. Built to Yamaha's standards, it fits right and holds firm. Available now from Part Hive's London hub, enjoy same-day UK dispatch on all orders completed before 1 PM.

We've had Yamaha NMAX-125 units where the threads were just slightly worn, and that was enough to cause issues. You don't always see it straight away because it looks fine on the bench, but under load, hard acceleration, belt grab, or frequent take-offs, the tiny play turns into movement and knocks through the drivetrain. We replace it with the correct original Yamaha clutch nut and it eliminates that completely, taking up any slack and giving solid, direct engagement with no compromise.

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