87131-ZW9-S00 Side Mark - Overview. The 87131-ZW9-S00 Side Mark is an essential rigging accessory for Honda marine engine systems. This OEM component functions as a side decal or marker that enhances visibility and identification of your marine equipment. Positioned on the side of the engine or rigging system, it contributes to keeping your marine setup operating reliably by maintaining clear labeling conforming to factory design standards. Engineered to meet precise Honda specifications, the Si