40202-ZW9-A30ZA Separator *NH282MU* - Overview. The 40202-ZW9-A30ZA Separator *NH282MU* is an essential component of Honda marine engine fuel systems. Its primary function is to separate oil and water from the fuel mixture, preventing contaminants from entering the combustion chamber and ensuring cleaner, more efficient engine performance. This separator helps maintain the longevity and reliability of Honda outboards by protecting critical fuel system components from corrosion and fouling.. Key