The McCormick 3688617M1 is a genuine OEM hydraulic pump designed for McCormick X4 and X5 series tractors, as well as various Landini 4 and 5 series models. This essential component ensures efficient and reliable operation of the tractor's hydraulic system, providing power for implements and steering. Weighing approximately 5.44 kg, it is built to OEM specifications for precise fit and long-lasting performance in demanding agricultural applications.