Back - Rear Drive Gear for Fertilizer or Planter Units on IH Farmall and International Cub Tractors.

Drive gear mounts on the tractor's REAR FINAL DRIVE unit and drives the fertilizer or planter unit drive chain.

10 Tooth Drive Gear.

Case IH Rear Drive Gear for Fertilizer or Planter Units part number 512210R1.

Also used on the below listed International Harvester (IHC) equipment:

Cub 201 Two-Row Planter Drill,  Cub-173A,   Cub 174-A,  and 184 Planters.