The McCormick 3677945M1 is a genuine OEM pulley designed for a wide range of agricultural machinery, including McCormick C, CX, MC, MTX, X, and XTX series tractors, Massey Ferguson 4200, 4300, 5400, 6200, 6400, 7400, and 8200 series, Valtra A series, and Fendt 700, 800, and 900 Vario series. This essential component ensures proper operation of the belt drive system. Weighing approximately 0.05 kg with dimensions of 95mm length, 51mm width, and 51mm height, it is built to OEM specifications for reliable performance.