50201-ZY3-C01ZA Case *NHB14M* - Overview. The 50201-ZY3-C01ZA Case *NHB14M* is a crucial swivel case component within Honda marine engine systems. It plays an essential role in protecting and housing key mechanical elements while supporting secure mounting and smooth operation of the marine engine. Crafted to OEM specifications, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. Genuine OEM Honda component designed specifically for