50201-ZY1-872ZB Case *NHB14M* - Overview. The 50201-ZY1-872ZB Case *NHB14M* is an essential component within the Honda marine engine systems. This part supports the swivel case system for Honda outboard motors, particularly designed for Honda-Active Marine NHB14M models. Its vital role is to house and protect key mechanical elements, ensuring the smooth operation of your marine engine. With precision engineering, it ensures seamless integration with existing parts, maintaining optimal performanc