Mercury - Water Separating Fuel Filter Yamaha-Compatible Series Marine-Grade Construction 8M0154752. Overview. If you spend enough time around docks and launch ramps, you'll hear the same truth from every seasoned boater: clean fuel is everything. You can have the strongest engine on the water, but if your fuel system takes on water or debris, the day can go downhill fast. That's why so many boat owners stick with a filter they genuinely trust. The Mercury Marine part number 8M0154752 Water Sepa