16910-ZY9-004 Fuel Filter - Overview. The 16910-ZY9-004 Fuel Filter is a critical component of Honda marine engine systems. It serves as a protector for the fuel system by removing impurities such as dirt, water, and other contaminants from the fuel before it reaches the engine. By doing so, it ensures the engine operates reliably and efficiently. Designed specifically for Honda outboard models like BF75D, BF80A, BF90D, and BF100A series, this fuel filter seamlessly integrates with existing part