---
product_id: 602994103
title: "MERCURY MARINE Mercury Mercruiser Quicksilver OEM Part # 33-13686Q NGK BU8H"
brand: "quicksilver"
price: "€ 42.67"
currency: EUR
in_stock: true
url: https://www.desertcart.fi/products/602994103-mercury-marine-mercury-mercruiser-quicksilver-oem-part-33-13686q-ngk
store_origin: FI
region: Finland
---

# Semi-surface discharge for cleaner ignition Standard M14x1.5 thread for easy installation Trivalent metal plating resists corrosion MERCURY MARINE Mercury Mercruiser Quicksilver OEM Part # 33-13686Q NGK BU8H

**Brand:** quicksilver
**Price:** € 42.67
**Availability:** ✅ In Stock

## Summary

> ⚡ Ignite your marine engine’s full potential with Quicksilver precision!

## Quick Answers

- **What is this?** MERCURY MARINE Mercury Mercruiser Quicksilver OEM Part # 33-13686Q NGK BU8H by quicksilver
- **How much does it cost?** € 42.67 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/602994103-mercury-marine-mercury-mercruiser-quicksilver-oem-part-33-13686q-ngk)

## Best For

- quicksilver enthusiasts

## Why This Product

- Trusted quicksilver brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **OEM Trusted Quality:** Engineered by Quicksilver, the leader in marine OEM parts for over 65 years.
- • **Effortless Maintenance:** Compatible with common spark plug sockets for quick, hassle-free replacement.
- • **Marine-Grade Durability:** Trivalent metal plating ensures superior corrosion resistance in harsh marine environments.
- • **Precision Ignition Boost:** Semi-surface gap design minimizes carbon buildup and pre-ignition for peak engine performance.
- • **Optimized Heat Management:** Pure alumina silicate ceramic insulator enhances strength and heat transfer to prevent misfires.

## Overview

The Quicksilver NGK BU8H spark plug features a semi-surface discharge design that improves ignition efficiency and prevents carbon fouling. Its trivalent metal plating offers exceptional corrosion resistance, making it ideal for marine engines. Designed with a pure alumina silicate ceramic insulator and ribbed suppressor seal, it ensures durability, heat management, and misfire prevention. This OEM part fits watercraft engines with an M14x1.5 thread size and is backed by Quicksilver’s 65+ years of marine industry expertise.

## Description

Full description not available

## Features

- NGK BU8H surface gap plugs feature a semi-surface discharge design to improve ignition and burn off any carbon before it can build up to foul the plug
- Check your engine owner’s manual for the correct spark plug and use only the plug as recommended by your engine’s original equipment manufacturer
- NGK Trivalent metal plating also provides superior anti-corrosion in the marine environment and anti-seizing for easier removal
- Spark plugs are easy to change with common spark plug sockets
- Spark plugs are easy to change with common spark plug sockets.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Quicksilver |
| Core Material | Copper |
| Thread Size | M14x1.5 |
| Top Material Type | Metal |
| Vehicle Service Type | Watercraft |
| Global Trade Identification Number | 00087295176498 |
| Automotive Fit Type | Vehicle Specific Fit |
| UPC | 087295176498 |
| OEM Part Number | 13686Q |
| Manufacturer | Quicksilver |
| Model | 13686Q NGK BU8H Semi-Surface Discharge Design Spark Plug, 1-Pack |
| Product Dimensions | 30.48 x 10.16 x 25.4 cm; 50 g |
| Item model number | 13686Q |
| Manufacturer Part Number | 13686Q |
| Material | Various Materials |
| Colour | multicolour |
| Manufacturer | Quicksilver |
| Country of Origin | USA |
| Item Weight | 50 g |

## Product Details

- **Brand:** Quicksilver
- **Core Material:** Copper
- **Thread Size:** M14x1.5
- **Top Material Type:** Metal
- **Vehicle Service Type:** Watercraft

## Images

![MERCURY MARINE Mercury Mercruiser Quicksilver OEM Part # 33-13686Q NGK BU8H - Image 1](https://m.media-amazon.com/images/I/81K9exMCVIL.jpg)

## Frequently Bought Together

- Quicksilver 13686Q NGK BU8H Semi-Surface Discharge Design Spark Plug, 1-Pack
- Quicksilver 816296Q2 Marine Engine in-Line Fuel Filter with Barbs for 5/16" (8 mm) Fuel Lines
- Quicksilver 858064Q01 High Performance SAE 90 Gear Lube for Mercury Outboards and MerCruiser Sterndrives, 32 oz

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**Shop now:** [https://www.desertcart.fi/products/602994103-mercury-marine-mercury-mercruiser-quicksilver-oem-part-33-13686q-ngk](https://www.desertcart.fi/products/602994103-mercury-marine-mercury-mercruiser-quicksilver-oem-part-33-13686q-ngk)

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*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-02-27*