The McCormick 6646280A1 Seal Kit is an original equipment manufacturer (OEM) part designed for various McCormick X4, X5, and X6 series agricultural tractors. This genuine seal kit provides essential components for maintaining the integrity and performance of hydraulic systems, preventing leaks and ensuring reliable operation. It is specifically compatible with models such as X4.20, X4.30, X4.40, X4.50, X4.60, X4.70, X5.20, X5.30, X5.40, X5.50, X6.420, X6.430, and X6.440.