The McCormick 6646593A1 Receiver is a genuine OEM component designed for various McCormick X-series agricultural tractors. This essential part ensures proper functionality and compatibility with specified models, including 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. Rely on this authentic McCormick part for optimal performance and durability in your machinery.