The McCormick 6678404A1 Valve is a genuine OEM replacement component specifically designed for a wide range of McCormick X6, X7, and X8 series agricultural tractors. This essential valve is critical for maintaining the proper function and hydraulic integrity of the machinery. It is compatible with models such as X6.440, X6.460, X6.470, X6.480, X6.490, X6.500, X7.440, X7.450, X7.460, X7.470, X7.480, X7.490, X7.650, X7.660, X7.670, X7.680, X7.690, X7.440 P6-DRIVE, X7.450 P6-DRIVE, X7.460 P6-DRIVE, X7.470 P6-DRIVE, X7.480 P6-DRIVE, X7.490 P6-DRIVE, X7.650 P6-DRIVE, X7.660 P6-DRIVE, X7.670 P6-DRIVE, X7.680 P6-DRIVE, X7.690 P6-DRIVE, X8.660, X8.670, X8.680, and X8.690.