747581M1 New Tractor Exhaust Valve Fits MF 133 135 140 145 148 150 152 +One New Aftermarket Replacement Exhaust Valve Fits Massey Ferguson Tractor Models: 133, 135, 140, 145, 148, 150, 152, 154, 20, 203, 205, 20C, 20D, 20E, 20F, 2135, 230, 235, 240, 245, 250, 253, 253 U. K., 254, 255, 260, 30B, 30E, 30H, 333, 340, 342, 350, 352, 355, 360, 40, 40E, AD3. 152 (4 RING PISTON) Exhaust valve for diesel applications. Replaces Part Numbers: 747581M1, 3142A081, 31431011, 31431521, 31431691, 31431761, 31431991, 3637529M1,