41100-ZVP-802ZA Gear *NH565* Case - Overview. The 41100-ZVP-802ZA Gear *NH565* Case is a critical component in Honda marine engine systems. It serves as the gear case assembly housing the essential gears and shafts that transmit power from the engine to the propeller. Carefully designed, this component maintains optimal performance and durability by ensuring seamless integration with existing parts, keeping your marine engine functioning reliably over time.. Key Features. Official OEM Honda gear