Original Yamaha NMAX 125 Camshaft Bolt (5YP-E2157-01) | 2015–2025

Sale price£6.95 GBP

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


For long-term engine reliability, every component needs to stay securely in place. This original Yamaha NMAX 125 camshaft bolt (5YP-E2157-01) ensures the camshaft assembly remains stable under everyday riding conditions. Built to original Yamaha specifications, it provides strength, durability, and a proper fit. Replacing it helps maintain engine integrity and prevents unwanted movement over time.

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

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Part Number
  • 5YP-E2157-01
Alternative Part Number

_

  • 5YP-E2157-00
Model
  • GPD125-A NMAX
Year
  • 2015
  • 2016
  • 2017
  • 2018
  • 2019
  • 2020
  • 2021
  • 2022
  • 2023
  • 2024
  • 2025
MFG
  • Yamaha

Product Overview

This high-quality Original Camshaft Bolt is designed to meet or exceed factory performance standards and is suitable for Yamaha XMAX 125 (2017-2025) and NMAX 125 (2015-2025) models.

The Camshaft Bolt secures the camshaft sprocket or bearing assembly to the camshaft, maintaining the critical alignment between the camshaft and the crankshaft drive chain. If this bolt becomes damaged, loose, or stripped, the camshaft timing can shift or the assembly can loosen during operation, risking severe valve-to-piston contact and internal engine damage. This original replacement is manufactured to original factory specifications, ensuring a secure and reliable camshaft assembly in your Yamaha scooters.

• Brand New Original Camshaft Bolt
• Part Number: 5YP-E2157-01
• Alternative Part Number(s): 5YP-E2157-00
• Original replacement for Yamaha XMAX 125 (2017-2025) and NMAX 125 (2015-2025)
• Secures the camshaft sprocket assembly to maintain correct valve and ignition timing
• Eliminates the risk of timing shift or camshaft assembly loosening caused by a damaged or worn bolt
• Direct fit, no modification required
• Recommended for replacement during camshaft service, timing chain replacement, or whenever the bolt shows signs of wear or damage
• 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 XMAX 125 and NMAX 125 owners with timing issues or engine damage risk caused by a loose, stripped, or damaged camshaft bolt
• Replacing the Camshaft Bolt during camshaft service, timing chain replacement, or engine top-end overhaul
• Mechanics and workshops carrying out Yamaha XMAX 125 and NMAX 125 engine timing and valve train servicing
• Riders wanting to maintain correct valve timing and safe engine operation in their Yamaha scooters
• Anyone looking for a guaranteed original replacement for their Yamaha XMAX 125 or NMAX 125

Complete Part Guide

If engine timing isn’t quite right, it can come down to how components are secured. The original Yamaha NMAX125 Camshaft Bolt (5YP-E2157-01) for 2015–2025 models ensures the camshaft stays firmly in place, preventing movement that can affect performance. A properly fitted bolt keeps everything aligned and working as intended. Built to Yamaha’s original standard, it delivers reliable clamping and precise fitment. Available now from Part Hive's London hub, order before 1 PM for same-day UK dispatch.

This isn’t the kind of fault that always shows up straight away on your NMAX-125. A slightly stretched bolt can still hold, but not perfectly. Over time, that small difference affects alignment and timing. We’ve seen engines where nothing looked obviously wrong, but the performance wasn’t quite right. We replace it with the correct original Yamaha camshaft bolt and brings everything back into proper alignment and fixes it without guesswork.

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