The McCormick 6618715A1 is a genuine OEM duct designed for various McCormick X5 series tractors. This essential component ensures proper airflow within the machinery's systems, maintaining efficient operation and preventing potential issues caused by restricted ventilation. Manufactured to McCormick's high standards, it guarantees a precise fit and reliable performance for models including X5.085, X5.095, X5.105, X5.115, X5.20, X5.30, X5.40, X5.50, X5.60, X5.70, X5.80, X5.90, X5.100, X5.110, X5.120, and X5.130 across Tier 4 and Tier 5 engine specifications.