Brand: Allstar Performance Manufacturer's Part Number: ALL30097 Part Type: Fans, Mechanical Product Line: Allstar Performance 6-Blade Fans Automotive Fittings Part Number: AAF-ALL30097 UPC: 848238018288 Rotation: Clockwise Clutch Required: No Blade Type: Standard Diameter (in.): 17.000 in. Number of Blades: 6 blades Blade Color: Black Blade Material: Aluminum Hub Color: Black Hub Material: Steel Remanufactured: No Quantity: Sold individually. Description: Allstar 6-blade fans are heavy-duty to move volumes of air and keep your race engine cool. These "engine coolers" are available in steel or aluminum with a protective black finish and have a universal bolt pattern and a 5/8 in. pilot hole. Race engines need to be cooled to run better, because they get hot! Allstar 6-blade fans will keep your hot car cooled!