The Case IH 48003991 Control Block is an essential OEM component designed for various Case IH Farmall C series tractors. This genuine control block ensures proper hydraulic system function and reliable operation across models such as FARMALL 85C, FARMALL 90C, FARMALL 100C, FARMALL 110C, and FARMALL 120C. Weighing approximately 0.45 kg, it is a direct replacement part crucial for maintaining optimal machine performance and hydraulic control.