41100-ZVL-020Zc Gear Nhb14m Case - Overview. The 41100-ZVL-020ZC Gear *NHB14M* Case is a crucial component within Honda marine engine systems. This gear case supports the marine propulsion system by housing and protecting the internal gears, ensuring smooth mechanical motion and efficient power transfer. Engineered to meet factory specifications, it offers seamless integration with existing marine hardware, maintaining optimal performance and durability.. Key Features. Genuine Honda OEM Gear Cas