The McCormick 6718826A1 is a genuine OEM front wheel hub designed for McCormick X4, X5, and X6 series agricultural tractors. This essential component ensures proper wheel rotation and stability, maintaining the performance and safety of your machinery. Manufactured to McCormick's high standards, it guarantees a precise fit and reliable operation for models including X4.20, X4.30, X4.40, X4.50, X5.20, X5.30, X5.40, X5.50, X6.420, X6.430, and X6.440.