50166-ZVL-010 Mount (Upper) Cover - Overview. The 50166-ZVL-010 Mount (Upper) Cover is an essential component designed for Honda marine engine systems. It acts as an upper protective cover for the mount system, ensuring the secure housing and protection of the mounting hardware. This part plays a critical role in maintaining the structural integrity of the engine mount, protecting internal components from exposure and wear. Crafted to meet precise factory specifications, it ensures seamless inte