The McCormick 6647629A1 Strut is a genuine OEM replacement part designed for various McCormick X-series tractors. This strut ensures proper structural support and functionality, maintaining the integrity of the machine's components. It is compatible with McCormick X4.20, X4.30, X4.40, X4.50, X4.60, X4.70, X4.35, X4.45, X4.55, X4.65, X4.75, X5.35, X5.45, X5.55, X5.100, X5.110, X5.120, X6.420, X6.430, X6.440, X6.460, X7.440, X7.450, X7.460, X7.650, X7.660, X7.670, X7.680, X8.660, X8.670, X8.680, and X8.690 models.