63722-ZY3-010ZB Cover *NHB14M* Cap - Overview. The 63722-ZY3-010ZB Cover *NHB14M* Cap is a crucial OEM component within Honda marine engine systems. This painted cover, finished in Aqua Marine Silver Metallic (NHB14M), functions as a protective cap ensuring the integrity and performance of the lower cover system. Its precise factory specifications ensure seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. Genuine Honda OEM cover cap painted in