The McCormick 4220416M91 Extension is a genuine OEM part designed for specific McCormick X4, X5, and X6 series agricultural tractors, including models X4.20, X4.30, X4.40, X4.50, X4.60, X5.30, X5.40, X5.50, X5.60, X6.420, X6.430, and X6.440. This essential component measures 150 mm in length, 30 mm in width, and 30 mm in height, with a weight of 0.2 kg. Manufactured to McCormick's stringent quality standards, it ensures optimal performance, durability, and a precise fit within the machinery's system.