High-quality aftermarket pinion and bevel gear set, part number 9514903, designed for reliable power transmission in agricultural machinery. This gear set is a direct replacement for Massey Ferguson OEM part number 1860000M91. It ensures optimal performance and durability for a wide range of Massey Ferguson tractor models, including 100, 200, 300, 500, 600, 1000, 2000, 3000, 4200, 4300, 5300, 6100, 6200, 8100, and 8200 Series, as well as specific models like MF 135, 165, 290, 3080, 4245, and 6290. With a weight of 5.5 kg and dimensions of 250mm length, 150mm width, and 150mm height, it provides a precise fit.