Mercury – On Board Fuel Filter | High-Efficiency Filtration | Vapor Separator System | 8M0122424

Overview

If you spend enough hours on the water, you learn that a reliable engine does not just happen—it is something you protect. Out on a windy afternoon or easing back into the marina at sunset, there is a comfort that comes from hearing your engine hum the way it should. No sputtering, no hesitation, just smooth, steady confidence. For many of us, that peace of mind starts with something as simple as clean, protected fuel.

The Mercury 8M0122424 On Board Fuel Filter is built for boaters who want that confidence every time they turn the key. Designed for Verado outboards, DFI models, and select MerCruiser sterndrives, this filter keeps the fuel system free from the debris, fine particles, and moisture that quietly steal power and create long-term wear. With this filter in place, your engine simply feels more trustworthy—crisp throttle, dependable starts, and a cleaner burn.

Key Features

• High-efficiency fuel filter designed for top screw-in vapor separator systems
• Removes harmful contaminants before they reach sensitive fuel components
• Compatible with a wide range of Mercury Verado and DFI engines
• Fits MerCruiser 4.5 liter and 6.2 liter engines (serial number 2A456613 and newer)
• Built to Mercury Marine’s fuel filtration standards for durability and precision
• Replace seasonally or as recommended in your owner’s manual

Engine & Boat Compatibility

• For Mercury in-line four-cylinder Verado outboards, 135–200 horsepower
• For Mercury in-line six-cylinder Verado outboards, 200–300 horsepower (serial number 2B144122 and below)
• Fits Mercury 1.5 liter and 3.0 liter DFI outboards equipped with a top screw-in filter
• Works with MerCruiser 4.5 liter and 6.2 liter sterndrive engines
• Common on offshore center consoles, bay boats, pontoons, sport boats, and freshwater runabouts

Performance & Practical Benefits

A fresh fuel filter changes the personality of your engine more than most people expect. Acceleration feels cleaner. Idle settles into a smooth rhythm. And when you push the throttle forward, the engine responds without that slight delay you sometimes notice when the fuel system starts carrying contaminants.

This filter is built to maintain proper flow while capturing the fine particles that modern fuel injection systems cannot tolerate. It protects injectors, rails, and the vapor separator system from unnecessary wear, helping your engine stay consistent through long trips and varying weather conditions. The screw-in style design keeps installation straightforward and secure, so you will not deal with leaks, loose seating, or messy improvisation.

Why Buy OEM

• Engineered specifically for Mercury and MerCruiser fuel systems
• Guarantees proper fit, flow rate, and filtration efficiency
• Helps maintain engine longevity and peak performance
• More reliable than aftermarket alternatives that may not meet Mercury specifications
• Practical choice for anyone who wants the engine to run right the first time and every time

When you choose an OEM Mercury Marine part, you are not guessing. You are keeping your engine protected the way its designers intended.

FAQ

Q1: Which engines does the 8M0122424 filter fit?

It fits Mercury Verado four-cylinder and six-cylinder outboards, Mercury DFI engines, and MerCruiser 4.5 liter and 6.2 liter sterndrives.

Q2: What makes this different from aftermarket filters?

OEM filtration guarantees correct micron rating, proper fuel flow, and long-term protection that aftermarket options often fail to match.

Q3: How can I confirm this is the right replacement?

Check your engine’s serial number and model against the compatibility list, or confirm with your owner’s manual.

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

Absolutely. Mercury builds these filters for harsh marine environments.

Q5: Is installation simple?

Yes. The screw-in design makes it a quick, clean replacement for most owners.