The McCormick 3557170M3 is a genuine OEM brake disc designed for various McCormick tractor models, including the CX, C, V, and T series. This essential component ensures optimal braking system performance and safety. With an outer diameter of 165 mm, an inner diameter of 82 mm, and a thickness of 5 mm, it is engineered to precise specifications for a perfect fit and long-lasting durability. It replaces part numbers 3557170M1, 3557170M2, and 3557170M4.