Mercury – Ignition Coil | Engine Ignition System | Brass & Stainless Steel | 8M0044991

Overview

Ask any seasoned boater what gives them the most peace of mind out on open water, and they’ll probably tell you the same thing: a strong, predictable ignition. When you turn that key, you want the engine to fire without hesitation—no stumbles, no guessing. That steady confidence is exactly what this Mercury Marine part delivers. It’s the kind of component you install once and trust every single time you push off from the dock.

Key Features

• Restores clean, strong ignition performance in Mercury outboards
• Built with durable brass and Stainless Steel for long-lasting reliability
• Designed and validated to factory ignition standards
• Engineered for consistency under heat, vibration, and marine conditions
• Made to Mercury Marine original equipment manufacturer specifications

Engine & Boat Compatibility

• Fits Mercury outboards:
  • 40–60 horsepower Electronic Fuel Injection (1C050252 and up)
  • 75–115 horsepower Electronic Fuel Injection (2B095049 and up)
  • Formula 60 (1C104574 and up)
  • 135–150 horsepower Electronic Fuel Injection (1B905505 and up)
  • 3.4 liter V6 175–200 horsepower (2B529482 and up)
  • 4.6 liter V8 200–300 horsepower (2B529482 and up)
• Ideal for center consoles, pontoons, runabouts, bass boats, offshore fishing rigs, and multi-purpose family boats.

Performance & Practical Benefits

A good ignition coil doesn’t call attention to itself—it just quietly does its job, trip after trip. With this one, you’ll feel the difference right away. Starts come quicker. Idle feels steadier. Throttle response sharpens up in a way you may not realize you were missing. Everything simply feels smoother and more controlled.

Mercury engineered this coil to endure the kinds of conditions we all know too well—hours of heat radiating off the powerhead, constant vibration, salt spray drifting into tight spaces. Cheaper aftermarket coils tend to fade or fail when pushed like that, but this one is built for marine life. The brass and Stainless Steel components stand up to corrosion, and the internal windings are designed for consistent spark output. It’s one of those small upgrades that adds up to major peace of mind while you’re miles from shore.

Why Buy OEM

There’s a real difference you can feel when you use genuine Mercury Marine parts. You’re not rolling the dice with tolerances or wondering whether a third-party part might run hot or burn out early.

Choosing OEM means:

• Perfect alignment with your ignition system
• Tested performance backed by Mercury engineering
• Longer lifespan than most aftermarket options
• Better cold starts, better throttle response, and better reliability over time

If you’re looking to solve a misfire, rough idle, or sluggish start—and solve it for good—this ignition coil is the right call.

FAQ

Q1: Which engines does the Mercury Ignition Coil 8M0044991 fit?

It fits a wide range of Mercury EFI outboards from 40 to 300 horsepower. Check the serial number ranges above for exact compatibility.

Q2: What makes this different from aftermarket coils?

Better materials, tighter engineering tolerances, and testing that matches factory ignition demands.

Q3: How do I know if this is the right replacement?

Match your engine’s serial number to the ranges listed. If it falls within them, this is the correct Mercury Marine part.

Q4: Can I use this in saltwater?

Yes. Its brass and Stainless Steel construction makes it very resistant to salt corrosion.

Q5: Is installation easy?

Most boaters with basic tools can handle the swap. It’s typically a simple remove-and-replace job.