38218-ZW9-003 Fuse (20a) Cover - Overview. The 38218-ZW9-003 Fuse (20A) Cover is a critical component designed to protect and secure the 20-amp fuse within Honda marine engine systems. Specifically built for Honda marine applications, this fuse cover supports the electrical system by safeguarding the fuse from environmental elements and mechanical damage. Its precise design ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. Twenty amp