16071-ZV4-005 Plug Screw - Overview. The 16071-ZV4-005 Plug Screw is an essential component in Honda marine engine systems. It serves a critical role in sealing and securing various parts of the marine engine assembly to prevent leaks and maintain system integrity. This plug screw is specially designed to fit precisely and ensure reliable operation in Honda marine engines, supporting their efficient and trouble-free performance.. Key Features. Genuine Honda OEM Plug Screw designed for marine eng