Mercury – Flame Arrestor | MerCruiser Engine Safety | Aluminum & Monel Mesh | 8M0113517

Overview

There’s a certain peace of mind that comes from knowing the air moving into your engine is being managed by something you trust. Out on the water, you don’t always get calm seas or perfect conditions, but you can count on the critical parts that keep your motor breathing safely. That’s why boaters appreciate a dependable flame arrestor — it’s the quiet guardian sitting right at the heart of the engine. With the Mercury Flame Arrestor 8M0113517, you don’t have to think twice. It’s one of those parts that just works, day after day, letting you focus on the ride, the shoreline, and the moments that brought you out there in the first place.

Key Features

• Engine safety component designed to prevent flame travel into the induction system
• Constructed with durable monel wire mesh to resist heat and corrosion
• Strong aluminum alloy base provides stability and long service life
• Precision-built for proper airflow to maintain smooth engine breathing
• Tested for performance in harsh marine environments
• Fits MerCruiser 8.2L Mag (serial number 1A350340 and up) and MerCruiser 4.5L MPI engines

Engine & Boat Compatibility

• Built for select MerCruiser sterndrive and inboard engines
• Compatible with 8.2L Mag and 4.5L MPI models
• Ideal for cruisers, sport boats, wake boats, performance boats, and family runabouts
• Works within many MerCruiser-powered installations where reliable combustion protection is essential

Performance & Practical Benefits

A good flame arrestor is one of those parts you rarely see, yet you feel its importance every time your engine fires up. The Mercury 8M0113517 delivers smooth, unrestricted airflow while keeping the combustion area protected. The monel mesh is tight and resilient, allowing the engine to breathe cleanly while acting as a strong barrier against flame flashback.

In use, you’ll notice how steady the engine feels — the idle settles in smoothly, throttle response stays crisp, and there’s none of that “choked” sensation you get from cheaper alternatives. The aluminum alloy base keeps the unit seated securely, resisting vibration and heat cycles that often wear down lesser components. Over time, it holds its shape, its tension, and its protective qualities, even as moisture, salt, and long weekends on the water take their toll on other parts.

Why Buy OEM

When it comes to something as crucial as engine safety, OEM really does matter. Genuine Mercury Marine parts are engineered specifically for the engines they protect, and this flame arrestor is no exception. You’re getting a component designed to fit right the first time, without forcing the engine to work harder than it should. Aftermarket versions might look similar, but they often lack the airflow precision or corrosion resistance needed for long-term reliability. With Mercury, you’re choosing quality that lasts — and avoiding the headaches that come from cutting corners.

FAQ

Q1: Which Mercury engines does the 8M0113517 Flame Arrestor fit?

It fits MerCruiser 8.2L Mag engines (serial number 1A350340 and up) and MerCruiser 4.5L MPI engines.

Q2: What makes this different from aftermarket options?

The monel mesh and aluminum alloy base provide better airflow, more corrosion resistance, and higher safety reliability compared to generic versions.

Q3: How do I know if it’s the correct replacement?

Check your engine model and serial number. If you run an 8.2L Mag or 4.5L MPI, this is the intended Mercury Marine part.

Q4: Can it be used in both saltwater and freshwater?

Absolutely. The materials were chosen specifically to handle harsh marine environments.

Q5: Is installation straightforward?

Yes, most boat owners can install it easily since it’s designed as a direct OEM replacement.