41100-ZVL-701ZC Gear *NHB14M* Case - Overview. The 41100-ZVL-701ZC Gear *NHB14M* Case is an essential component within Honda marine engine systems. This gear case assembly supports the marine propulsion unit by enclosing and protecting the internal gears, ensuring smooth mechanical motion and operational reliability. Manufactured to match exact factory specifications, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. OEM Genuine H