The McCormick 3657715M1 Crown Wheel is a genuine OEM component designed for the differential assembly of a wide range of agricultural tractors. This essential gear ensures proper power transfer within the differential, contributing to the smooth operation and maneuverability of the machine. With 37 teeth, an outer diameter of 220 mm, an inner diameter of 100 mm, and a width of 45 mm, it offers reliable performance and durability for compatible McCormick, Massey Ferguson, and Landini tractor models.