The McCormick 3687307M1 is a genuine PTO (Power Take-Off) clutch disc designed for a wide range of agricultural tractors, including Massey Ferguson, Landini, and McCormick models. This essential component ensures reliable power transmission to implements. It features an outer diameter of 310 mm, an inner diameter of 180 mm, 10 splines, and a hub diameter of 45 mm, ensuring precise fitment and optimal performance in compatible machinery.