This pin serves as the pivot point for the upper link arm on the three-point hitch of an agricultural tractor. It connects the upper link to the tractor chassis, allowing the link to articulate as the implement is raised and lowered. Wear on the pin bore or the pin itself introduces play in the hitch, which can cause uneven implement lift and accelerated wear on the adjacent linkage components. This original-manufacture pin is machined to the same diameter and surface finish as the original assembly, so it fits the existing bushings without requiring shimming or reaming.