41100-ZZ5-020ZA Gear nh282mu Case - Overview. The 41100-ZZ5-020ZA Gear nh282mu Case is a critical component of Honda marine engine systems. This gearcase assembly supports the lower unit system, responsible for transmitting power from the engine to the propeller, enabling smooth propulsion and steering. Manufactured to precise factory specifications, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. OEM Genuine Honda gearcase desi