The McCormick 6638786A2 Stirrup is an authentic OEM replacement part designed for a wide range of McCormick X-series agricultural tractors. This critical component is manufactured to McCormick's rigorous quality standards, ensuring durability and a precise fit. It is essential for maintaining the structural integrity and operational safety of your machinery. This stirrup provides reliable performance for various models, including those in the X4, X5, X6, X7, and X8 series.