50201-ZZ5-000ZB Case Nhb14m - Overview. The 50201-ZZ5-000ZB Case Nhb14m is a critical OEM component designed for Honda marine engine systems. It functions as a swivel case housing, primarily supporting the steering and mounting system to keep your marine engine operating reliably. By ensuring seamless integration with existing parts, it maintains optimal performance, durability, and protection for sensitive internal mechanisms.. Key Features. Genuine OEM Honda case ensuring precise fit and durab