This genuine McCormick part 6718757A1 is a precision-engineered shim, crucial for maintaining correct clearances and alignment within various McCormick agricultural machinery. With a precise thickness of 0.5mm, an inner diameter of 25mm, and an outer diameter of 40mm, this shim ensures optimal performance and longevity for critical components. It is designed for a wide range of McCormick tractor models, including the X4, X5, X6, X7, and X8 series, ensuring proper fit and function.