Sierras 18-7786 Fuel Filter Kit is designed for use with select Honda 35 HP, 40 HP, 45 HP, 50 HP, 75 HP, and 90 HP outboard engines. Includes one fuel filter kit per package. The fuel filter features a Micron rating of 27. The kit is interchangeable with Honda Outboard 16900-SA5-004 and Mallory 9-37952 and 9-37952-10. Each Sierra product meets or exceeds the original equipment part it replaces. Fit specific, check part numbers to ensure proper fit.