Mercury – Fuel Filter | 9.9–30hp EFI Series | Marine-Grade Construction | 8M0134466

Overview

Every small outboard has a story behind it — a dinghy ride at sunrise, a slow troll across a quiet lake, a long run toward the flats that always feels a little magical. No matter where you take it, you want an engine that fires cleanly and keeps running without hesitation. That’s where the Mercury Marine part 8M0134466 fuel filter makes a difference. It’s a small part, sure, but it carries big responsibility. When you know your fuel system is protected from water and debris, you can focus on the water ahead instead of worrying about what’s inside your tank.

Key Features

• Designed for Mercury 9.9–30 horsepower EFI outboards (2017 and newer)
• Translucent bowl allows easy viewing of fuel quality and contaminants
• Filter element can be removed quickly for simple replacement
• Fits neatly under the outboard cowl without modifying the engine layout
• Built to meet Mercury’s strict OEM filtration and flow-rate specifications
• Durable housing designed for harsh marine fuel conditions

Engine & Boat Compatibility

• Mercury 9.9hp EFI outboards
• Mercury 15hp EFI outboards
• Mercury 20hp EFI outboards
• Mercury 25hp EFI outboards
• Mercury 30hp EFI outboards
• Ideal for skiffs, jon boats, inflatable boats, utility rigs, tenders, and small fishing boats
• Compatible with engines using serial numbers 0R833820 and above (2017+)

Performance & Practical Benefits

A clean fuel system changes everything. You’ll feel the difference the moment you twist the throttle — smoother idle, quicker starts, and more consistent response. The translucent bowl is a small but meaningful touch. You can glance at it before heading out and instantly know if your fuel is clean or if water has settled in. That kind of visibility saves trips, prevents headaches, and protects the motor from the kind of damage you never want to deal with.

The filter element itself is built for the demands of modern EFI engines. It maintains flow even when the water is rough, when you’re tilting the engine up and down, or when the tank sloshes during long runs. It keeps debris out, helps your injectors stay healthy, and reduces the chances of fuel-related hiccups that can ruin an otherwise perfect day on the water.

Why Buy OEM

When it comes to filtration, the difference between “good enough” and “designed for your engine” can be huge. Mercury’s OEM filters are built with the exact media density, flow characteristics, and material strength required for EFI systems. Aftermarket options may look similar, but they often cut corners on internal construction. A few dollars saved upfront can turn into lost time or costly repairs later. With this Mercury Marine part, you know the fit will be right and the protection will last — no adapting, no guessing, no surprises.

FAQ

Q1: Which Mercury engines does this fuel filter fit?

It fits Mercury 9.9–30hp EFI outboards with serial numbers 0R833820 and newer.

Q2: How is this different from aftermarket filters?

It’s built to exact OEM standards, with a filtration level and flow rate designed specifically for Mercury EFI systems.

Q3: How do I confirm this is the correct replacement?

Check your outboard’s serial number. If it’s 0R833820 or above, this is the right filter.

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

Absolutely. The materials and design hold up well in salt, heat, humidity, and long hours of use.

Q5: Is installation easy?

Yes — most boaters can replace it in just a few minutes. The translucent bowl and under-cowl fit make the process straightforward.