Mercury – Fuel Filter Kit | Water-Separating Fuel System | Marine Filtration Assembly | 8M0088825

Overview

Anyone who’s run a small outboard for long enough knows how quickly a great day on the water can turn sour when fuel isn’t clean. A sputter at idle, a stumble when you throttle up — it all points to the same quiet culprit hiding in the fuel line. The Mercury 8M0088825 Fuel Filter Kit brings back that sense of confidence you want every time you pull away from the dock. It keeps your outboard breathing clean, steady fuel, so you can focus on the fishing line, the shoreline, or the simple joy of being out there instead of worrying about what’s mixing in your tank.

Key Features

• Water-separating fuel filter kit designed for select Mercury two-stroke outboards
• Removes contaminants and moisture before they reach the carburetor or injection system
• Marine-grade filter media engineered for small horsepower engines
• Includes replacement filter element and components for straightforward servicing
• Compact design built for tight spaces common in smaller boat rigging
• Fast, easy replacement for old or water-contaminated filters

Engine & Boat Compatibility

• Fits various Mercury two-stroke outboards from 9.9 to 50 horsepower
• Ideal for portable setups, lightweight skiffs, dinghies, aluminum fishing boats, pontoon auxiliaries, and small center consoles
• Works with engines requiring a water-separating filter in the fuel supply line
• Designed for fuel systems vulnerable to moisture from portable tanks or long periods of storage

Performance & Practical Benefits

A reliable fuel filter isn’t glamorous, but it’s one of the most important quiet heroes in your outboard’s fuel system. With the Mercury 8M0088825 installed, you’ll notice smoother idle, more predictable throttle response, and fewer unexpected hiccups when you push the boat onto plane. The filter captures both fine contaminants and the moisture that naturally builds up in portable tanks — keeping your engine protected from that milky, water-laden fuel that can stop a day dead in its tracks.

Replacing the filter is simple. It twists off cleanly and seats back into place with a tight, secure feel, so you know it’s sealed properly. Small outboards rely heavily on consistent, clean fuel delivery, and this filter provides exactly that. The media is designed to hold together under vibration and heat, and it won’t collapse internally the way some generic filters can.

Most boaters notice improved reliability right away. No more stumbling when you shift out of idle. No more hesitation when you open the throttle. Just smooth, steady operation — the way a Mercury two-stroke should run when it’s getting clean fuel.

Why Buy OEM

Fuel filtration is one area where cutting corners just doesn’t pay off. An aftermarket filter might look similar, but its internal media and water-separating capabilities often fall short. Mercury’s 8M0088825 Fuel Filter Kit is engineered specifically for small outboards, with the correct flow rate, capacity, and sealing design to protect your engine without restricting fuel. It’s durable, dependable, and built to handle the unpredictable conditions of boating life. If you care about performance and long-term reliability, OEM is the smarter and more economical choice in the long run.

FAQ

Q1: Which engines does the 8M0088825 Fuel Filter Kit fit?

It’s designed for Mercury two-stroke outboards ranging from 9.9 to 50 horsepower.

Q2: What makes this filter better than aftermarket options?

OEM filters offer superior moisture separation, stronger internal media, and correct fuel flow for Mercury engines.

Q3: How do I know if this is the correct replacement for my setup?

Check your engine’s horsepower and fuel line configuration, or confirm with your manual using the Mercury Marine part number.

Q4: Can this filter be used in saltwater and freshwater?

Yes — it’s designed to handle moisture exposure and contaminants common to both environments.

Q5: Is installation straightforward?

Very. Most boaters can replace the filter with basic tools in just a few minutes.