Description Hydraulic lift pump assembly. 1-3/8" O.D. 10-spline shaft. Tractors: TO35 (s/n 179304 & up), MF35, MF50, MF65. ALSO FITS MF TRACTORS: 231, 253,55. Industrials: 203, 205, 202 & 204 work bull models. This item is a suitable alternative for the following: 184473M93, 1201-1603, 12011603, 184473M91, 775894, A588178, S.60461, S60461