New Old Stock Gear for Slanting Seed Plate Hopper Bottom used in Cole No. 40, 41, 42, 43, 44, 45, and 46 Planters.
Cole Manufacturing part number C258.
The inside diameter of the mounting hole is 1 3/16 inch
The total outside diameter is 4 3/8 inch.
Current Cole part numbers may vary from the casting numbers embossed on the actual part.