This genuine McCormick 6518264M1 washer is an essential component for various McCormick and Massey Ferguson agricultural tractors. With an inner diameter of 20.5 mm, an outer diameter of 36 mm, and a thickness of 3 mm, this robust washer ensures proper spacing and secure fastening. It is a direct OEM replacement, also cross-referenced as Massey Ferguson 3615433M1 and 3615433M2, ensuring compatibility and reliable performance in demanding farm machinery applications.