Case IH part numbers: 520142R1
POAX style seed hoppers came with a corn / bean seed bottom or a cotton bottom
Massey Ferguson Industrial: 20
L306K24 Undermount and Mid-mount Kubota L245FP
9 Tooth Drive Gear for International Duplex Seed Hopper Planter Unit, CPD5011 Case IH part numbers: 520142R19 Tooth Pinion Drive Gear for International Harvester Duplex Seed Hopper Drive Unit. Commonly used on Farmall 140, 130, Super A, A, 100, Cub, Super C, 200, 230, and Other Tractor Models with Side Mount Planter Units. Case IH Planter Pinion Drive Gear part number CPD5011. Also used on the below listed IHC planting equipment when using Type C Duplex Seed Hoppers: Cub 173A, Cub 174A, 184, 34 221, 4M 21, F251, 251, F282, FTC251, 40, 44, 44A, 60, 440 46,