91554-ZW1-000 Collar (8.5X14.5) - Overview. The 91554-ZW1-000 Collar (8.5X14.5) is a precision-engineered component integral to Honda marine engine systems. It functions as a critical part designed to secure or support other components within the marine rigging and accessory systems. With exact dimensions of 8.5 by 14.5 millimeters, this collar ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. Specifically designed collar to fit Hond