Mercury Marine Water-Separating Fuel Filter - 35-864572

Protect your marine engine from fuel system contamination with the genuine OEM Quicksilver / Mercury Marine Water-Separating Fuel Filter. Designed specifically for high-performance outboard and sterndrive applications, this filter effectively traps emulsified water, rust, and microscopic debris before contaminants can reach your fuel injectors or carburetor. Engineered to original Mercury Marine factory specifications, it provides a precise fit, a secure leak-free thread seal, and heavy-duty corrosion resistance built to withstand harsh saltwater environments and high-vibration conditions. Regular maintenance using part numbers 35-864572, 35-864572T01, or 35-864572Q01 prevents misfires, protects fuel pumps, and maintains peak engine efficiency across various Mercury, Mariner, and MerCruiser gas models. For optimal performance and fuel system longevity, replace this spin-on filter every 100 operating hours or at least once per boating season.