Every tractor in the FitTractor database, 195 models across 14 manufacturers, from 13.7 to 67 PTO horsepower. Each row lists the four specifications that decide attachment fit: PTO horsepower, hitch category, available PTO shaft speeds, and three-point lift capacity. Loader-equipped models carry their loader model, and their lift rating where one has been confirmed from manufacturer documentation, with the measurement basis stated, because a capacity quoted at the pivot pin and one quoted 24 inches forward are not the same number. Where a loader figure could not be confirmed, the record shows none. Brands covered include Kubota, John Deere, Kioti, Mahindra, New Holland, Massey Ferguson, LS Tractor, TYM, Branson, Yanmar, Bobcat, Case IH, Zetor, and RK Tractors. Records cite manufacturer documents where available, and each record shows whether its figures were read. Unverified fields are left empty rather than estimated.