The McCormick 4203852M1 duct is an essential genuine OEM component designed for various McCormick X-series tractors. This high-quality duct ensures optimal airflow within the machine's systems, contributing to efficient operation and longevity. It is compatible with a wide range of models including the X4.20, X4.30, X4.40, X4.50, X4.60, X4.70, X4.80, X4.90, X5.20, X5.30, X5.40, X5.50, X5.60, X5.70, X5.80, X5.90, X6.420, X6.430, X6.440, X6.460, X6.470, X6.480, X6.490, X7.440, X7.460, X7.470, X7.480, X7.650, X7.660, X7.670, X7.680, X8.660, X8.670, and X8.680 series. Constructed to McCormick's exacting standards, this duct provides a precise fit and reliable performance.