The Case IH 663108R1 is a genuine OEM axle head designed for a range of Case IH and International Harvester tractors, including models from the 100 Series (766, 886, 966, 986, 1066, 1086, 1466, 1486, 1566, 1586), 30 Series (3088, 3288, 3388, 3488, 3588, 3688, 3788), 50 Series (5088, 5288, 5488), and Hydro Series (Hydro 100, Hydro 186). This critical driveline component ensures proper power transfer and structural integrity for heavy-duty agricultural operations. Weighing approximately 10.89 kg, it is manufactured to original equipment specifications for durability and precise fit.