41100-ZX2-E01ZD Gear Nh565 Case - Overview. The 41100-ZX2-E01ZD Gear Nh565 Case is a critical component in Honda marine engine systems. This gear case assembly supports the marine propulsion system by housing the gears that transmit power from the engine to the propeller, ensuring efficient boat movement. Manufactured to precise Honda factory specifications, it guarantees seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. Genuine Honda OEM ge