40201-ZV1-943ZC Case *NHB14M* - Overview. The 40201-ZV1-943ZC Case *NHB14M* is a critical OEM component designed for Honda marine engine systems. This case serves within the gearcase assembly system, playing a vital role in protecting internal components and ensuring smooth mechanical operations. Crafted to factory specifications, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. Genuine OEM Honda case designed for the gearcase as