This is part # 68206. It is a spacer that is used on a number of different plow mounts. Look below for a list of mounts that use this. This is for a 2008-2016 Ford Super Duty F250, F350, F450 and F550. These are often missing. If you have a used mount, the mount uses two and the listing is only for one. It is #6 in the diagram below. We sell every other piece for the mount, too.