The McCormick 6605789A3 is an original equipment manufacturer (OEM) dust cover designed for various McCormick X-series agricultural tractors. This genuine part ensures optimal protection and a precise fit, maintaining the integrity of the covered components. It is compatible with models including X4.20, X4.30, X4.40, X4.50, X4.60, X4.70, X4.80, X5.20, X5.30, X5.40, X5.50, X5.085, X5.095, X5.105, X5.115, 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, and X8.680.