Mercury – Spark Plug Wire Set | EFI FourStroke Series | Marine-Grade Ignition Leads | 8M0088014

Overview

There’s a certain feeling you get when your outboard lights off instantly — a clean, confident rumble that tells you the ignition system is doing exactly what it should. When you rely on your boat to carry you through long days on the water, those small but essential pieces become a quiet source of trust. The Mercury 8M0088014 Spark Plug Wires are the kind of parts that keep that trust alive. They deliver a strong, steady spark that helps your 75–115 horsepower EFI FourStroke run smooth, responsive, and ready for whatever the day brings.

Key Features

• Complete spark plug wire set designed for Mercury EFI FourStroke outboards.
• Contains four precision-engineered marine ignition leads.
• Built to Mercury specifications for consistent ohm resistance and strong spark delivery.
• Durable marine-grade insulation resists heat, vibration, and moisture.
• Designed for a tight, secure fit onto spark plugs and ignition coils.
• Ensures clean combustion and reliable engine performance.

Engine & Boat Compatibility

• Fits Mercury 75, 90, and 115 horsepower EFI FourStroke outboards
• Compatible with engines beginning at serial number 2B095049 and newer
• Ideal for pontoons, bay boats, aluminum fishing rigs, skiffs, and general-purpose family boats
• Designed for any Mercury FourStroke platform requiring high-quality ignition leads

Performance & Practical Benefits

Reliable spark plug wires may not be the flashiest upgrade, but you’ll absolutely feel the difference once they’re installed. These Mercury Marine ignition leads help your engine fire consistently, even on cool mornings or after long periods at idle. You’ll notice smoother acceleration when you push the throttle forward, steadier idle when you’re setting up for a drift, and cleaner combustion that keeps your outboard running at its best.

The wires themselves feel robust in your hands — flexible yet firm, with that “secure” click when you seat them onto the plugs. The insulation is thick and confident, built to resist saltwater spray, engine-compartment heat, and the constant vibration that comes from long hours on the water. Each wire is engineered to hold its shape without sagging or loosening over time.

Because the resistance is carefully validated within Mercury’s specifications, the spark stays strong and consistent cylinder after cylinder. That means fewer misfires, better fuel efficiency, and an overall smoother-running engine. It’s one of those upgrades that reminds you how much small parts matter when it comes to real-world performance.

Why Buy OEM

Ignition systems are sensitive. Even a small variation in wire resistance or connector fit can throw off timing, weaken spark, or cause rough running. With genuine Mercury Marine spark plug wires, you get components specifically built for your engine’s design — with the correct length, resistance, and durability to keep everything firing the way it should. Aftermarket wires may fit, but they rarely match the long-term reliability, heat resistance, or precise electrical performance of OEM parts. Investing in the right wires now protects your outboard, improves fuel economy, and helps you avoid headaches down the line.

FAQ

Q1: Which engines does the 8M0088014 Spark Plug Wire Set fit?

It fits Mercury EFI FourStroke outboards from 75 to 115 horsepower, beginning with serial number 2B095049 and up.

Q2: What makes OEM spark plug wires better than aftermarket?

They’re engineered with exact ohm resistance, marine-grade insulation, and precise connection points designed specifically for Mercury’s ignition system.

Q3: How can I be sure this is the right set for my engine?

Check your engine’s serial number and horsepower rating, or verify the part number in your owner’s manual.

Q4: Are these wires suitable for saltwater use?

Yes — they’re built with corrosion-resistant materials and insulation designed for harsh marine environments.

Q5: Is installation simple for most boat owners?

Very. Replacing spark plug wires is a straightforward process that requires minimal tools and experience.