Quicksilver Fuel Filter Kit 8M0219171

This Quicksilver fuel filter kit (part #8M0219171) is a genuine OEM replacement specifically designed for mid-range Mercury/Mariner 4-stroke outboards in the 40–60 HP class. It is the under-cowl fuel filter cartridge found on these engines. Over time, this filter accumulates sediment and water from the fuel, so Mercury recommends replacing it regularly – typically every 100 engine hours or once per year.

The 8M0219171 kit includes:

• Fuel filter element: a cylindrical cartridge with high filtration efficiency that removes fine rust, dirt, and any water droplets from the fuel before it reaches your injectors or carburetor. As an OEM part, this filter meets all Mercury specifications for flow rate and filtering, ensuring your engine receives the proper volume of clean fuel.
• Sealing O-ring: a new rubber ring to install along with the filter. It ensures a tight seal of the filter housing cap, preventing air leaks or fuel seepage. Replacing the O-ring with each filter change is crucial to maintain fuel system pressure and prevent any leakage.

Advantages: Using a genuine Quicksilver filter kit guarantees compatibility and easy installation – simply remove the old filter, clean out the housing (if any debris is present), and insert the new cartridge. Then replace the O-ring (lightly coat it with clean oil or grease for a better seal) and tighten the cap. The whole process takes only a few minutes, even for a non-expert boater.

Recommendations:

• This kit is appropriate for Mercury/Mariner 40, 50, 60 HP EFI 4-stroke outboards (typically from the mid-2000s onward, including BigFoot/SeaPro variants). If unsure about fitment, check your old filter’s part number or consult the engine manual – part numbers 8M0149607 and 8M0219171 are interchangeable on these models.
• When replacing, always work in a clean area – avoid letting any dirt fall into the open filter housing.
• After installation, turn the ignition on a few times (for EFI motors) or prime the fuel line bulb to fill the new filter with fuel before starting the engine. Check the cap area for leaks – if the O-ring is seated correctly, there should be no fuel weeping out.
• Dispose of the old filter responsibly, as it may contain trapped pollutants.

Real-world use: If your boat is powered by, say, a 2010 Mercury F50 EFI, changing this filter annually will maintain your engine’s pep and reliability. A clogged or dirty filter can cause lean running, loss of power, or sputtering at high RPM. Many owners report that after installing a new filter, their engine starts more easily and runs smoother, especially during acceleration. Since the kit is small and lightweight, it’s wise to keep a spare on board – if you’re planning a long cruise or expedition, an on-the-water swap is quick and can save you from fuel-related engine issues. By using the genuine Quicksilver 8M0219171, you’re ensuring peace of mind and peak performance for your Mercury outboard.