50201-ZW2-F11ZB Case Nhb14M - Overview. The 50201-ZW2-F11ZB Case Nhb14M is a critical component within Honda marine engine systems. This case supports the swivel system, providing essential housing to maintain the integrity and protection of internal engine parts. Designed for Honda's NHB14M series outboard engines, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. Genuine OEM part specifically engineered for Honda marine engines.