50201-ZY1-870ZA Case *Nh282mu* - Overview. The 50201-ZY1-870ZA Case *NH282MU* is a specialized swivel case component designed for Honda marine engine systems. This case plays a crucial role in supporting the marine engine's lower unit assembly by housing essential moving parts and providing a durable protective enclosure. As an OEM part, it is engineered to ensure seamless integration into your engine system with high precision, thereby maintaining the reliability and longevity of your marine eq