This three-point linkage pin is the central pivot component in the tractor’s rear hitch system. It connects the lower linkage arms to the tractor chassis, allowing the arms to articulate as the implement is raised and lowered. A worn or bent pin introduces slop in the linkage, causing uneven implement lift and accelerated wear on the adjacent bushings and ball joints. This original pin is machined to the same diameter and surface finish as the factory-installed component, so it seats without clearance adjustments or shimming. On replacement, inspect the mating bushings for ovality and replace them if worn.