The McCormick 6629642A1 Valve is a genuine OEM replacement part designed for various McCormick X-series tractors. This essential valve ensures proper system function and maintains the performance of your agricultural machinery. Compatible with a wide range of models including X4.20, X4.30, X4.40, X4.50, X4.60, X4.70, X4.70M, X4.80, X4.80M, X4.90, X5.20, X5.30, X5.40, X5.50, X5.55, X5.60, X5.70, X5.85, X5.95, X6.420, X6.430, X6.440, X6.460, X7.440, X7.450, X7.460, X7.650, X7.660, X7.670, X7.680, X7.690, X8.660, X8.670, X8.680, and X8.690 tractors.