41100-ZV1-C00ZB Case, Gear *NHB14M* - Overview. The 41100-ZV1-C00ZB Case, Gear *NHB14M* is a critical component designed specifically for Honda marine engine systems. It acts as the protective housing for the internal gear assembly, playing a vital role in the transmission of power from the engine to the propeller. By safeguarding the gear mechanism within the marine drive system, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features.