40202-ZW6-C00ZA Separator *NH246* - Overview. The 40202-ZW6-C00ZA Separator *NH246* is an essential fuel filter/water separator component for Honda marine engine systems. It plays a crucial role in maintaining engine reliability and performance by removing water and other contaminants from the fuel before it reaches the engine. This separator supports the fuel system by ensuring clean fuel flow and preventing damage caused by impurities.. Key Features. OEM genuine Honda part designed specificall