Mercury - Water Separating Fuel Filter Marine Filtration Series High-Efficiency Element 8M0154766. Overview. There's a certain comfort that settles in when you know your engine is running on clean, dependable fuel. It's that quiet confidence you feel when you ease away from the dock at sunrise, or when you push the throttle a little harder heading toward open water. The Quicksilver 8M0154766 Water Separating Fuel Filter is one of those behind-the-scenes parts that keeps your time on the water sm