The McCormick 6678174A1 is a genuine OEM valve designed for various McCormick X-series tractors, including models X4.30, X4.40, X4.50, X5.35, X5.45, X5.55, X6.420, X6.430, X6.440, X7.440, X7.460, X7.650, X7.660, X7.670, and X7.680. This essential component ensures reliable hydraulic system operation. It is also compatible with Landini 4, 5, 6, and 7 series tractors, such as 4-075, 4-080, 4-090, 4-100, 4-105, 5-085, 5-095, 5-105, 5-115, 6-115, 6-120, 6-125, 6-130, 7-145, 7-160, 7-175, 7-180. The valve weighs approximately 0.5 kg.