The McCormick 6645829A2 Duct is an original equipment manufacturer (OEM) part designed for various McCormick X4 Series tractors. This genuine duct ensures proper airflow within the tractor's systems, contributing to efficient operation and maintaining optimal component temperatures. Engineered for a precise fit and durable performance, it is a critical component for the specified McCormick X4.20, X4.30, X4.40, X4.50, X4.60, X4.20M, X4.30M, X4.40M, X4.50M, X4.35, X4.45, X4.55, X4.35M, X4.45M, X4.55M, X4.060, X4.070, X4.080, X4.060M, X4.070M, X4.080M, X4.060V, X4.070V, X4.080V, X4.060F, X4.070F, X4.080F, X4.060GE, X4.070GE, X4.080GE, X4.060XL, X4.070XL, X4.080XL, X4.060XLP, X4.070XLP, X4.080XLP, X4.060XLS, X4.070XLS, X4.080XLS, X4.060XLT, X4.070XLT, X4.080XLT, X4.060XLM, X4.070XLM, X4.080XLM models.