This strip is a wear component that lines the bottom of the inclined feeder housing. It provides a sliding surface for the crop mat as it is drawn from the header into the threshing mechanism. The strip absorbs abrasion from the crop and any debris carried into the feeder; once worn through, the feeder housing floor becomes exposed to damage, and the gap allows material to snag or bunch, reducing feed consistency. The manufacturer machines this strip to the original profile so it seats flush against the feeder floor and aligns with the chain-and-slat assembly above it. On replacement, clean the mounting surface and use new fasteners to maintain a flat, secure fit.