87131-ZW5-000 Side Mark - Overview. The 87131-ZW5-000 Side Mark is an essential identification decal component within Honda marine engine systems. It serves as a visual marker used primarily for labeling the side of various Honda outboard engines, supporting the overall marine engine system by ensuring clear identification and authenticity. Designed to match factory specifications, this side mark ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. Function as a side marker decal for visual identification on Honda marine engines.. Genuine OEM part produced to meet Honda's strict quality and durability standards.. Helps in maintaining engine authenticity and facilitates easy part identification.. Designed to match factory specifications, dimensions, and tolerances perfectly.. Integrates cleanly with existing engine hardware and decals without interference.. Ensures consistent appearance and expected durability during marine ope