The John Deere R79253 Hydraulic Pump Shaft is an authentic OEM component designed for a wide range of John Deere agricultural and industrial equipment. This genuine shaft ensures precise fit and optimal functionality within compatible hydraulic pump and transmission systems. With confirmed dimensions of 95 mm length, 51 mm width, and 51 mm height, and a weight of 0.12 kg, it meets original manufacturing specifications for durability and performance. This essential part is compatible with numerous John Deere tractor, combine, and cotton picker models, including the 4040, 7200, 9400, and 9R Series, providing critical operational support.