2528203K1 & 2528204K1 Hydraulic Piston & O-Ring Seal Kit Fits Massey Ferguson 65One New Aftermarket Replacement Seal Kit Fits Massey Ferguson Tractor Models: 65 (High Clearance), 135, 150, 165, 230, 235, 240, 245, 250, 253, 255, 265, 275, Fe135 (Coventry). Fits Industrial Construction Models: 20, 20C, 20D, 20F, 30, 30B, 30E, 40, 40B, 40E, 50C, 202, 203, 204, 205, 302, 304, 2135, 3165. Tech Info: Comes With One Hydraulic Piston Seal (Part # 2528203K1) One O'Ring Hyd. Piston Seal (Part # 2528202K1). Hydraulic Piston Seal Is 3 1 8".