Original Yamaha NMAX 155 Gear Box Bearing 6301 (93306-351Y8) | 2017-2025

Sale price£11.50 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.


When your gearbox is running properly, everything feels smoother and quieter on the road. This original Yamaha NMAX 155 gearbox bearing 6301 (93306-351Y8) helps restore that clean, low-friction movement inside the transmission. Built to original Yamaha specifications, it fits properly and runs reliably under daily use. If you're noticing noise or roughness, a worn bearing is often the cause. Replacing it brings back that smooth, steady feel.

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 GPD155-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
  • 93306-351Y8
Alternative Part Number

_

  • 93306-301XT
Model
  • GPD155-A NMAX
Year
  • 2017
  • 2018
  • 2019
  • 2020
  • 2021
  • 2022
  • 2023
  • 2024
  • 2025
MFG
  • Yamaha

Product Overview

This high-quality Original Gear Box Bearing 6301 is designed to meet or exceed factory performance standards and is suitable for Yamaha NMAX 155 (2017-2025) models.

The gear box bearing is a precision deep-groove ball bearing supporting the shaft assembly within the final drive gearbox, carrying the radial and axial loads generated during normal riding while allowing smooth, low-friction rotation. Wear, contamination, or lubricant breakdown within the bearing races produces audible noise from the gearbox, increased shaft play, and progressive deterioration of adjacent gear teeth and housing surfaces. This original replacement is manufactured to original factory specifications, restoring correct shaft support, reducing rotational friction, and ensuring reliable gearbox operation on your Yamaha NMAX 155.

- Brand New Original Gear Box Bearing 6301
- Part Number: 93306-351Y8
- Alt Part Number: 93306-301XT
- Original replacement for Yamaha NMAX 155 (2017-2025)
- Ensures smooth shaft rotation and correct bearing preload within the gearbox
- Prevents premature gear wear and maintains correct shaft alignment
- Direct fit, no modification required
- Ideal replacement during gearbox service or output shaft overhaul
- 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 155 owners with a noisy, worn, or damaged gear box bearing
• Replacing the Gear Box Bearing 6301 during gearbox service or output shaft overhaul
• Mechanics and workshops carrying out Yamaha NMAX 155 gearbox servicing
• Riders wanting to restore quiet and reliable gearbox operation to their Yamaha NMAX 155
• Anyone sourcing a guaranteed original replacement for their Yamaha NMAX 155

Complete Part Guide

A quiet, smooth ride often comes down to the smallest parts doing their job properly. The original Yamaha NMAX155 Gear Box Bearing 6301 (93306-351Y8) for 2017-2025 models keeps the transmission turning freely, reducing friction and helping power flow smoothly through the drivetrain. When it's right, everything feels effortless. Built to Yamaha's original standard, it offers precise fitment, reliable performance, and long-lasting durability. Available now from Part Hive's London hub, order before 1 PM for same-day UK dispatch.

This is one you feel through the bike before you even think about what's wrong. Slight vibration through the floorboard, a bit of roughness when rolling, subtle at first. In practice, we've seen riders chase tyres or suspension, thinking it's that. Then you open it up and find the bearing's gone rough. We swap it for the correct original Yamaha gearbox bearing 6301 for your NMAX-155 unit, and the whole bike feels tighter and smoother again.

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