63702-ZW1-000 Cover (Lower) Rub - Overview. The 63702-ZW1-000 Cover (Lower) Rub is a crucial rubber component designed specifically for Honda marine engine systems. It functions as a protective lower cover, safeguarding vital parts of the engine from environmental elements and wear while enhancing the overall durability and longevity of the outboard motor. By integrating smoothly with existing hardware, seals, and housings, it ensures seamless operation and optimal protection.. Key Features. Gen