50201-ZW9-820ZA Case *NH282MU* - Overview. The 50201-ZW9-820ZA Case *NH282MU* is a critical component for Honda marine engine systems, specifically designed for the swivel system. This genuine OEM part functions as a protective housing that safeguards the internal mechanisms of the swivel assembly. By maintaining structural integrity and preventing environmental damage, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. Precisely e