41101-ZY9-H00ZA Gear *NHB14M* Case - Overview. The 41101-ZY9-H00ZA Gear *NHB14M* Case is a crucial part of Honda marine engine systems. This gear case functions as a protective housing that ensures the reliable transmission of power from the engine to the propeller, playing a vital role in keeping marine engines operating smoothly. Crafted to exact factory specifications, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. The Gear