Original Yamaha NMAX 125 Engine Oil Sump Drain Bolt 12mm (90340-12808) | 2015-2025

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


A proper oil change starts with a bolt that seals correctly every time. This original Yamaha NMAX 125 engine oil sump drain bolt 12mm (90340-12808) ensures a tight and secure seal to prevent leaks and keep everything clean. Built to original Yamaha specifications, it fits exactly as it should and holds firm under regular use. If the bolt is worn or damaged, it can lead to drips or poor sealing. Replacing it keeps your servicing straightforward and mess-free.

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

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
  • 90340-12808
Alternative Part Number

_

  • 90340-12816
Model
  • GPD125-A NMAX
Year
  • 2015
  • 2016
  • 2017
  • 2018
  • 2019
  • 2020
  • 2021
  • 2022
  • 2023
  • 2024
  • 2025
MFG
  • Yamaha

Product Overview

This high-quality Original Engine Oil Sump Drain Bolt 12mm is designed to meet or exceed factory performance standards and is suitable for Yamaha NMAX 125 (2015-2025), XMAX 300 (2017-2025), Tricity 125 (2017-2024), Tricity 300 (2020-2025), D'ELIGHT 125 (2021-2024), TT-R110 110 (2010-2017), and World GP 60th Anniversary 320 (2017-2018) models.

The Engine Oil Sump Drain Bolt seals the oil drain port in the engine sump, retaining engine oil between service intervals. When the bolt becomes stripped, cross-threaded, or corroded, it causes persistent sump oil leaks, risking low oil levels and potential engine damage. This original replacement is manufactured to original factory specifications, ensuring a reliable oil-tight seal in your Yamaha motorbikes.

- Brand New Original Engine Oil Sump Drain Bolt 12mm
- Part Number: 90340-12808
- Alternative Part Number(s): 90340-12816
- Original replacement for Yamaha NMAX 125 (2015-2025), XMAX 300 (2017-2025), Tricity 125 (2017-2024), Tricity 300 (2020-2025), D'ELIGHT 125 (2021-2024), TT-R110 110 (2010-2017), and World GP 60th Anniversary 320 (2017-2018)
- Seals the sump drain port reliably to prevent engine oil leaks
- Eliminates sump oil leaks caused by a stripped, cross-threaded, or corroded drain bolt
- Direct fit, no modification required
- Recommended for replacement during engine oil service or whenever a leak from the sump drain bolt area 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, XMAX 300, Tricity 125, Tricity 300, D'ELIGHT 125, TT-R110, and World GP 60th Anniversary owners with engine sump oil leaks caused by a stripped, cross-threaded, or corroded oil sump drain bolt
• Replacing the Engine Oil Sump Drain Bolt during engine oil service or sump drain bolt repair
• Mechanics and workshops carrying out Yamaha engine oil servicing
• Riders wanting to eliminate oil leaks and maintain correct oil levels in their Yamaha motorbikes
• Anyone looking for a guaranteed original replacement for their Yamaha NMAX 125, XMAX 300, Tricity 125, Tricity 300, D'ELIGHT 125, TT-R110, or World GP 60th Anniversary

Complete Part Guide

It's a simple part, but every oil change depends on it. The original Yamaha NMAX125 Engine Oil Sump Drain Bolt 12mm (90340-12808) for 2015-2025 models seals the sump securely while allowing clean and controlled oil drainage during servicing. When fitted correctly, it keeps the system tight and leak-free. Built to Yamaha's original standard, it delivers accurate threading, a proper seat, and dependable sealing. Available from Part Hive's London warehouse, order before 1 PM for same-day UK dispatch.

A small oil drip is usually how it begins on your NMAX-125. The typical issue is a worn sealing surface or slight thread wear on the bolt. In real workshop cases, we see this quite often after repeated oil changes, where the same bolt's been reused too many times. Riders tend to ignore it at first or wipe it off and carry on. From experience, it only gets worse. We fit the correct original Yamaha engine oil sump drain bolt 12mm and it restores proper sealing, sits flush against the sump, and stops the leak properly.

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