40201-ZY6-611ZA Case *NH282MU* - Overview. The 40201-ZY6-611ZA Case *NH282MU* is a genuine Honda OEM marine engine part that functions as an extension case within Honda marine engine systems. Its primary role is to provide a durable housing or cover that supports system integrity and protects critical internal components from environmental elements. Designed specifically for compatibility with Honda active marine engine series, this part ensures seamless integration with existing parts, maintain