Mercury 35-8M0106635 Water Separating Fuel Filter Genuine OEM replacement Mercury 35-8M0106635 Water Separating Fuel Filter. Mercury fuel filters are constructed of the highest quality materials and are made specifically for marine applications. This 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 Features Engineered to satisfy al