41101-ZVP-000ZA Gear NH565 Case - Overview. The 41101-ZVP-000ZA Gear NH565 Case is an essential component in Honda marine engine systems. It plays a critical role in housing the gears that transfer power from the engine to the propeller, ensuring smooth mechanical motion and efficient propulsion. Designed to meet exact factory specifications, this gear case supports the lower unit system of Honda outboard engines, providing robust protection and alignment for internal gears. With precise fit and