40201-ZW1-010ZA Case *NH282MU* - Overview. The 40201-ZW1-010ZA Case *NH282MU* is a crucial component in Honda marine engine systems, specifically designed to serve as an extension case housing for the internal elements of the NH282MU series engines. This case plays a vital role in protecting and supporting the internal mechanisms, ensuring that the engine operates smoothly and reliably in aquatic environments. Made to OEM specifications, it ensures seamless integration with existing parts, maint