11861-ZY3-000 L Plate - Overview. The 11861-ZY3-000 L Plate is a crucial component within Honda marine engine systems, chiefly supporting the timing belt cover system. It serves as a left side timing belt cover plate that helps protect and secure critical engine components, facilitating reliable operation and longevity of the engine. Carefully engineered for Honda marine engines, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. E