50640 Western WideOut Fisher XLS Poly Wing Cutting Edge Retainer Bar 50644

Here is a Factory Retainer Bar # 50640 / 50643 / 50644. 

These are used on the front of the poly to keep the bolts from tering through as well as stacked on the back when using a poly edge to give the clearance. These come in some of the kits including 81994, 80261, 80259. 

This retainer bar is used on the Western WideOut and the Fisher XLS. It bolts through the poly plow wing cutting edges.  Does not come with the bolts.

For a break down of related parts, check this link.