--- product_id: 225307699 title: "Quicksilver 13686Q NGK BU8H Semi-Surface Discharge Spark Plug for Marine Outboard Engines, 1 Pack" brand: "quicksilver" price: "11433CFA" currency: XOF in_stock: true reviews_count: 10 category: "Quicksilver" url: https://www.desertcart.sn/products/225307699-quicksilver-13686q-ngk-bu8h-semi-surface-discharge-spark-plug-marine store_origin: SN region: Senegal --- # Semi-surface discharge for cleaner ignition Standard socket compatibility for easy replacement Marine-grade anti-corrosion plating Quicksilver 13686Q NGK BU8H Semi-Surface Discharge Spark Plug for Marine Outboard Engines, 1 Pack **Brand:** quicksilver **Price:** 11433CFA **Availability:** ✅ In Stock ## Summary > ⚡ Power your marine engine with spark plug perfection! ## Quick Answers - **What is this?** Quicksilver 13686Q NGK BU8H Semi-Surface Discharge Spark Plug for Marine Outboard Engines, 1 Pack by quicksilver - **How much does it cost?** 11433CFA with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/225307699-quicksilver-13686q-ngk-bu8h-semi-surface-discharge-spark-plug-marine) ## 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 - • **Trusted OEM Quality:** Quicksilver’s 65+ years of marine expertise ensures you get genuine, rigorously tested parts for lasting reliability. - • **Ignite with Precision:** Semi-surface discharge design minimizes carbon buildup and pre-ignition for peak engine performance. - • **Effortless Maintenance:** Fits common spark plug sockets, making replacements quick and hassle-free—no mechanic needed. - • **Engineered for Endurance:** Pure alumina silicate ceramic insulator enhances strength and heat transfer, reducing breakage risks. - • **Built for the Marine Life:** NGK’s trivalent metal plating delivers superior corrosion resistance in harsh marine environments. ## Overview The NGK BU8H semi-surface discharge spark plug is engineered specifically for Mercury marine outboard engines, featuring a corrosion-resistant trivalent metal plating and a robust ceramic insulator for enhanced durability and heat management. Its unique design prevents carbon fouling and pre-ignition, ensuring optimal ignition performance and fuel efficiency. Easy to install with standard tools, this OEM-quality plug delivers reliable, long-lasting marine engine performance trusted by professionals. ## Description The NGK BU8H semi-surface gap plugs have small side electrode not requiring gap adjustment pre-gap and are nearly immune to pre-ignition (knocking). Use only the spark plug listed in your engine owner’s manual. Using the wrong plug can reducing optimum performance, reduce fuel economy or cause damage to your engine. The NGK pure alumina silicate ceramic insulator provides superior strength, reduces breakage and better heat transfer. The Ribbed Suppressor Seal extends resistance and prevents spark “flash over” and misfire plus the triple seal helps prevent leakage. The Quicksilver brand is the leader in delivering uncompromising engine oils, parts and accessories to the marine industry for over 65 years. Quicksilver is the premier supplier of Mercury Marine Original Equipment replacement engine parts, oils, and accessories, but also works to serve all Original Equipment brands in the marine and powersports industries. It has earned a loyal following by providing the highest quality products that are tested through some of the most rigorous environments and testing procedures. No aftermarket company comes close to the level of research and design as Quicksilver; buying Quicksilver is buying performance, protection and peace of mind. Review: Spark plug - Worked well for my mower at a good cost! Highly recommend Review: Great Plugs! - Great Price! Fast Shipping! Works Great! ## 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 | |---------------|-------| | ASIN | B00N6D6MWI | | Automotive Fit Type | Vehicle Specific Fit | | Best Sellers Rank | #29,670 in Automotive ( See Top 100 in Automotive ) #210 in Automotive Replacement Spark Plugs | | Brand Name | Quicksilver | | Compatible with Vehicle Type | Mercury outboard engines | | Core Material | Copper | | Customer Reviews | 4.6 4.6 out of 5 stars (323) | | Global Trade Identification Number | 00087295176498 | | Included Components | Spark Plug (1) | | Manufacturer | Quicksilver | | Manufacturer Part Number | 13686Q | | Model Number | 13686Q | | OEM Equivalent Part Number | 13686Q | | Thread Size | M14x1.5 | | Top Material Type | Metal | | UPC | 087295176498 | | Unit Count | 1.0 Count | ## Product Details - **Brand:** Quicksilver - **Core Material:** Copper - **Thread Size:** M14x1.5 - **Top Material Type:** Metal - **Vehicle Service Type:** Mercury outboard engines ## Images ![Quicksilver 13686Q NGK BU8H Semi-Surface Discharge Spark Plug for Marine Outboard Engines, 1 Pack - Image 1](https://m.media-amazon.com/images/I/61wuC8mMbnL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Spark plug *by J***P on August 1, 2025* Worked well for my mower at a good cost! Highly recommend ### ⭐⭐⭐⭐⭐ Great Plugs! *by A***R on December 6, 2024* Great Price! Fast Shipping! Works Great! ### ⭐⭐⭐⭐⭐ Perfect replacements *by J***. on April 6, 2026* Good ## 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 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.sn/products/225307699-quicksilver-13686q-ngk-bu8h-semi-surface-discharge-spark-plug-marine](https://www.desertcart.sn/products/225307699-quicksilver-13686q-ngk-bu8h-semi-surface-discharge-spark-plug-marine) --- *Product available on Desertcart Senegal* *Store origin: SN* *Last updated: 2026-07-07*