This rear lift pin serves as the pivot point for the lower linkage arms in the three-point hitch system. It connects the lift arms to the tractor chassis, allowing the hitch to raise and implement loads. A worn pin creates slop in the linkage, causing uneven implement lift and accelerated wear on the bushing bores. This original-manufacturer pin is machined to the same diameter tolerance as the original assembly, so it fits the hitch bores without requiring shimming or bushing replacement. On installation, apply grease to the pin shank and verify that the retaining clip or cotter is fully seated.