The unbranded 138712 thrust bearing is a high-quality aftermarket component designed as a direct replacement for John Deere part number R41517. This robust bearing ensures smooth operation and reliable performance in demanding agricultural applications. It is compatible with a wide range of John Deere tractor models, including the 1020, 1520, 2020, 2030, 2440, 2630, 2640, 3030, 3040, 3130, 3140, 4030, 4040, 4230, 4240, 4430, 4440, 4630, 4640, and 4840. With an outer diameter of 76.2 mm, an inner diameter of 44.45 mm, and a width of 22.23 mm, this bearing provides precise fitment and durability.