The McCormick 6658684A1 is an authentic OEM hydraulic cylinder, precisely engineered for various McCormick X-series tractors including models like X4.30, X4.40, X4.50, X5.35, X5.45, X6.420, X6.430, and X6.440. This robust component is crucial for maintaining optimal steering and implement control, offering durability and consistent performance. With a length of 450 mm and a weight of 5.5 kg, it ensures a perfect fit and reliable operation, upholding the high standards of McCormick machinery.