The McCormick 6646047A1 is a genuine OEM lift arm designed for various McCormick X-series tractors, including X4, X5, X6, X7, and X8 models. This essential component ensures reliable hydraulic lift system operation. It is also compatible with a wide range of Landini and Valpadana tractors, offering broad application across agricultural machinery. Weighing approximately 4.54 kg, this robust lift arm provides durability and precise fitment for optimal performance.