Mercury – Water-Separating Fuel Filter Kit | Verado L6 Series | Vessel-Mounted Filtration | 8M0114618

Overview

Any boater who’s spent long days offshore knows how quickly a great run can sour when moisture sneaks into the fuel system. It steals power, roughens the idle, and chips away at the confidence you count on every time you turn the key. The Mercury 8M0114618 Water-Separating Fuel Filter Kit is built to restore that confidence. It’s the kind of part you install once and instantly appreciate — the peace of mind, the cleaner throttle response, the steady reassurance that your Verado is getting the fuel quality it deserves. Whether you’re chasing fish at sunrise or easing back into the marina after a full day on the water, this is the quiet protection that keeps the engine running strong.

Key Features

• Removes moisture and debris from fuel before it reaches the engine
• Vessel-mounted design for vented fuel tank systems
• Transparent inspection bowl allows quick visual checks
• Integrated drain for simple servicing
• Built and tested for high-capacity Verado fuel demands

Engine & Boat Compatibility

• Designed for Mercury L6 200–300 horsepower Verado outboards
• Fits engines in serial number range 1B517434 through 2B144122
• Intended for use with vented fuel tanks only
• Common on center consoles, bay boats, offshore rigs, and upscale pontoons running Verado power

Performance & Practical Benefits

Out on the water, steady fuel delivery is everything. A filter like this doesn’t shout its importance — it proves it in the way your engine holds a smooth idle during those slow no-wake stretches, or how it pulls cleanly when you nudge the throttles forward in chop. The transparent inspection bowl makes it easy to spot water or contaminants before they cause trouble, and the bottom drain gives you a simple way to clear them out without tearing into the system.

Owners of L6 Verados know these engines thrive on clean, moisture-free fuel, especially when the tank vents are exposed to changing temperatures, humidity, or long stints on the trailer. This kit adds a secure buffer that protects injectors, prevents hesitation, and keeps performance tight and predictable. With marine-tested materials designed to handle constant vibration, heat, and fuel exposure, the entire assembly is built for the long haul.

Why Buy OEM

With filtration, there’s no room for guesswork. A genuine Mercury Marine part means the flow rate, filter media, sealing surfaces, and bowl materials are engineered specifically for the fuel demands of high-output Verado engines. Aftermarket versions may claim compatibility, but they rarely match the reliability or the exact fit needed to protect an L6 under load. With OEM, you’ll get correct installation, dependable operation, and parts built to survive real marine use — salt, heat, vibration, and everything in between.

FAQ

Q1: Which engines does the 8M0114618 Fuel Filter Kit fit?

It fits Mercury L6 Verado outboards from 200 to 300 horsepower within the listed serial number range.

Q2: What sets it apart from aftermarket filters?

Mercury engineers these kits to match Verado flow requirements exactly and to perform consistently in harsh marine environments.

Q3: How do I confirm this is the right filter for my boat?

Match your engine’s serial number or check your owner’s manual for verification.

Q4: Can it be used in saltwater and freshwater?

Absolutely — the materials are designed for both, as long as it’s installed in a compartment open to air and free of ignition sources.

Q5: Is installation straightforward?

Yes. Most boaters with basic tools can install it, especially since the vessel-mounted design is user-friendly.