40202-ZY3-621ZA Separator *NH282MU* - Overview. The 40202-ZY3-621ZA Separator *NH282MU* is an essential component in Honda marine engine fuel systems. This fuel filter separator supports the fuel system by removing water and impurities from the fuel, thereby preventing damage and ensuring the engine runs smoothly and reliably. It plays a critical role in maintaining the longevity and performance of Honda marine engines by protecting vital engine components from contamination.. Key Features. OEM