EMP 35-35441 Water Separating Fuel Filter The EMP 35-35441 Water Separating Fuel Filter filter separates water from fuel as it removes other impurities. Fuel contaminated water can result in poor engine performance, stalling, and damage to the fuel system.Fits: 175-300 HP V6 and V8 FourStroke Outboards; Replaces: Mercury 35-8M0106635; Sierra 18-7519;