40201-ZVD-010ZA Case *NHB14M* - Overview. The 40201-ZVD-010ZA Case *NHB14M* is a critical extension case component designed specifically for Honda marine engine systems. This case serves as a protective housing essential for the NHB14M engine model, facilitating reliable performance and structural integrity. It supports the engine's mechanical system by providing a sturdy enclosure that protects internal components from environmental exposure and mechanical damage. Engineered to meet stringent f