Fits: Massey Tractor MF 303 & MH models Pony, Pacer (16), Pacemaker, 20, 20K, Colt (21) Mustang (23), 22, 22K, 30, 30K, 44, 44 Special, 44-6, 50, 55, GP 4WD, 55K, 81, 82, 101 Jr, 101 Sr, 102 Jr., 102 Sr., 201, 202, 203, 333, 444, 555, 404.