91551-ZVT-000 Collar (8X17) - Overview. The 91551-ZVT-000 Collar (8X17) is an essential component in Honda marine engine systems. This collar is designed to support the mechanical and structural systems within marine engines, providing secure connection and alignment of parts. As a precision-engineered OEM part, it ensures seamless integration with existing parts, maintaining optimal performance and durability required for demanding marine environments.. Key Features. Precision collar with dimen