4th Transmission Gear
CTPA-1683360M1 Replacement Part to Fit:  Massey Ferguson For Models: 1085, 135, 150, 165, 235, 240, 245, 255, 265, 275, 285, 390T Replaces: 1660095M1. Dim./Info: 32 OD TEETH, 18 SPLINE  Price:  $134.96  Buyers Club Price:  $121.46