41100-Zx2-C11Zd Gear *Nh565* Case - Overview. The 41100-Zx2-C11Zd Gear *Nh565* Case is an essential component of Honda marine engine systems. It plays a critical role in the power transmission mechanism by housing and protecting the gear assembly that drives watercraft propulsion. Designed to match factory specifications, this gear case ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. Genuine Honda OEM component built to factory sta