41100-ZY9-H01ZA Gear Nhb14m Case - Overview. The 41100-ZY9-H01ZA Gear Nhb14m Case is a vital component within Honda marine engine systems. It supports the gear housing system, providing a protective enclosure for the internal gear mechanisms of the marine propulsion unit. Designed specifically for Honda marine applications, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. Specialized gear case housing designed to protect and cont