41100-ZW5-030ZA Gear Nh282Mu Case - Overview. The 41100-ZW5-030ZA Gear Nh282Mu Case is a crucial component in Honda marine engine systems, serving as the housing for the gear assembly within the lower unit. This part supports the transmission and drivetrain functions, ensuring smooth mechanical motion and reliable power transfer. Built to exact factory specifications, it integrates seamlessly with existing hardware and seals, maintaining optimal performance and durability.. Key Features. Genuine