41100-ZVP-602ZA Gear Nh565 Case - Overview. The 41100-ZVP-602ZA Gear Nh565 Case is a genuine OEM gearcase assembly for Honda marine engine systems. This integral component supports the gear system that houses and drives the propeller, ensuring smooth and reliable propulsion for your boat. Designed specifically for Honda marine applications, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. This Gear Nh565 Case functions as the cor