The John Deere R27712 Hub Spindle is a genuine OEM replacement part designed for a wide range of John Deere tractors, including the 1020, 1520, 2020, 2030, 2630, 2640, 2840, 2940, 3030, 3040, 3130, 3140, 3300, 3430, 3640, 4030, 4040, 4230, 4240, 4430, 4440, 4630, 4640, 4840, 8430, 8630, 8440, and 8640 Series. This critical component ensures proper wheel hub function and steering integrity. Measuring approximately 254 mm (10 inches) in length and weighing around 4.54 kg (10 lbs), this spindle is built to John Deere's rigorous specifications for durability and performance. It supersedes the part number R27711.