41100-ZX2-C01ZD Gear *NH565* Case - Overview. The 41100-ZX2-C01ZD Gear *NH565* Case is an essential component of Honda marine engine gear systems. This gear case supports the reliable operation of marine gear assemblies by housing and protecting the gear mechanism critical to propulsion. Engineered to Honda's precise specifications, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. Genuine OEM Honda gear case designed to support t