The McCormick 3687345M1 PTO shaft is an original equipment manufacturer (OEM) part designed for a wide range of Massey Ferguson, Landini, and McCormick agricultural tractors. This essential power take-off shaft measures 295 mm in length and features 6 splines, ensuring reliable power transmission from the tractor's engine to implements. Weighing 1.15 kg, it is a direct replacement for the original part, maintaining optimal performance and compatibility across various models.