91508-Zy3-000 Collar - Overview. The 91508-ZY3-000 Collar is an essential component within Honda marine engine systems. It functions as a connecting piece that supports structural integrity and operational continuity in the timing belt cover system. Precisely crafted to meet factory specifications, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. Genuine OEM Honda part designed specifically for marine engine applications.. Serves