16031-ZY3-000 Plate Stay - Overview. The 16031-ZY3-000 Plate Stay is a critical rigging component within Honda marine engine systems. This part acts as a sturdy support plate that plays a vital role in maintaining the structural integrity and alignment of engine subassemblies, ensuring operations remain stable and reliable in marine environments. Crafted as an OEM genuine Honda part, the Plate Stay guarantees compatibility with factory dimensions and engineering tolerances, preventing misfits or