The product is an OEM part for commercial trucks made by Mack, with the specific manufacturer part number 2MH360M. This part is essential for maintaining and repairing Mack trucks, ensuring they continue to function at their optimal level. As a genuine Mack part, it is designed and manufactured to meet the high standards of quality and durability expected for commercial truck components. It is a key component in keeping these trucks running smoothly and efficiently. Fan Blade 5in Fan Pilot Diameter 7 Blades 24in Fan Blade Diameter Material: Nylon 1B1