Original Yamaha NMAX 125 Guide Pin Pulley Set X4 (B74-E7664-00) | 2021-2025

Sale price£9.95 GBP

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


Smooth CVT performance depends on how well internal parts move together. This original Yamaha NMAX 125 guide pin pulley set (B74-E7664-00) keeps pulley movement controlled and aligned, helping the transmission operate without hesitation. When everything moves as it should, acceleration feels clean and consistent.

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
  • B74-E7664-00
Alternative Part Number

_

Model
  • GPD125-A NMAX
Year
  • 2021
  • 2022
  • 2023
  • 2024
  • 2025
MFG
  • Yamaha

Product Overview

This high-quality Original Guide Pin Pulley Set X4 is designed to meet or exceed factory performance standards and is suitable for Yamaha NMAX 125 (2021-2025) models.

The guide pin pulley set provides the sliding pin guides within the secondary driven pulley assembly, ensuring the movable pulley sheave travels smoothly and consistently along its range of movement as the CVT adjusts the transmission ratio. Worn or damaged guide pins cause uneven pulley movement, belt misalignment, and erratic CVT performance, resulting in inconsistent acceleration and increased belt wear. This original replacement set is manufactured to original factory specifications, restoring smooth driven pulley operation and consistent CVT performance to your Yamaha NMAX 125.

- Brand New Original Guide Pin Pulley Set X4
- Part Number: B74-E7664-00
- Original replacement for Yamaha NMAX 125 (2021-2025)
- Ensures smooth and consistent driven pulley sheave movement
- Restores correct CVT belt alignment and consistent ratio adjustment
- Direct fit, no modification required
- Ideal replacement during CVT service or secondary pulley 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 125 owners with worn, damaged, or sticking driven pulley guide pins
• Replacing the Guide Pin Pulley Set during CVT service or secondary pulley overhaul
• Mechanics and workshops carrying out Yamaha NMAX 125 CVT servicing
• Riders wanting to restore the original CVT performance of their Yamaha NMAX 125
• Anyone looking for a guaranteed original replacement for their Yamaha NMAX 125

Complete Part Guide

Inside the CVT, pulley movement must stay perfectly smooth to maintain consistent power delivery. The original Yamaha NMAX125 Guide Pin Pulley Set X4 (B74-E7664-00) for 2021-2025 models ensures the pulley faces slide cleanly along their tracks, preventing binding or uneven travel. This set keeps the variator operating smoothly across the rev range. Manufactured to original Yamaha specification, it provides precise fitment, low-friction movement, and dependable durability. Available now from Part Hive's London hub, enjoy same-day UK dispatch on all orders completed before 1 PM.

When we open up a Yamaha NMAX-125 CVT, worn guide pins often come with visible damage on surrounding parts, marks on the pulley, uneven wear, even heat build-up. It's a chain reaction. Once the pins stop guiding properly, everything else suffers. We replace them early prevents bigger repairs. We install a fresh original Yamaha guide pin pulley set and the system runs clean, without unnecessary wear.

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