The McCormick 3648404M1 is a genuine OEM washer designed for various McCormick X-series agricultural tractors. This essential component ensures correct spacing and secure fastening within critical assemblies, maintaining the integrity and performance of your machinery. Manufactured to McCormick's exacting standards, it guarantees durability and a precise fit for models including the X4.20, X4.30, X4.40, X4.50, X4.60, X4.70, X5.20, X5.30, X5.40, X5.50, X6.420, X6.430, X6.440, X7.440, X7.450, X7.460, X7.650, X7.660, X7.670, X7.680, X8.660, X8.670, and X8.680.