The McCormick 3532789M1 is a genuine PTO axle shaft designed for a wide range of Massey Ferguson and McCormick tractors. This essential component measures 395mm in length and features 21 splines, ensuring reliable power transfer for agricultural and industrial applications. It replaces OEM part numbers 3532789M91 and 3532789M92, providing a direct fit for various models including the MF 100, 200, 500, 600, 2000, 3000, 3100, 3600, 6100, and 8100 series, as well as specific industrial models.