The McCormick 6631705A1 is a genuine OEM hydraulic pump designed for optimal performance in McCormick X4 series tractors, including models X4.20 through X4.120. This essential component ensures efficient hydraulic system operation, providing reliable power for various agricultural implements. It is also compatible with a range of Landini 4-series and Valpadana 9000-series tractors, ensuring broad application across AGCO-affiliated machinery.