Front Axle Carrier Rebuild Kit.  Fits: Oliver 1550, 1600, 1650, 1750, 1800 (s/n 115377>), 1850, 1950, 1950-T.  Includes 1) 72161722 Bearing, 1) KS5045 Bearing,  1) 72160020 Seal, 1) 831225M1, 1) 72160019 Thrust Washer.  #KS5045KIT.