The McCormick 6638511A1 is a genuine OEM hydraulic pump designed for various McCormick CX and MC series agricultural tractors. This essential component ensures efficient hydraulic system operation, providing consistent fluid pressure for implements and steering. Manufactured to McCormick's specifications, it guarantees optimal performance and durability. Confirmed fitment includes models such as CX100, CX105, CX110, CX50, CX60, CX70, CX75, CX80, CX85, CX90, CX95, MC100, MC105, MC115, MC120, MC130, MC135, MC80, MC90, and MC95. Replaces Case IH 87300300, 87300300R and New Holland 87300300, 87300300R.