63715-ZW9-010ZB L Eng *NHB14M* Cvr - Overview. The 63715-ZW9-010ZB L Eng *NHB14M* Cvr is a genuine OEM left engine cover designed specifically for Honda marine engine systems. Made to protect the lower part of the engine, this cover plays a crucial role in maintaining optimal engine performance and durability. Its design ensures seamless integration with existing parts, enhancing water resistance and mechanical protection for your engine.. Key Features. Genuine OEM cover designed for the left lo