Description:Fan spider assemblies are important components of the cooling system and are used with the radiator to draw out excess heat to cool engines.Attributes:• 10 blades• Fan diameter: 508 mm (20 in)• Pilot diameter: 41.03 mm (1.615 in)• Clockwise rotation• For use with M8 mounting hardware• Cat parts are manufactured to precise specifications and are built for durability, reliability, productivity, less environmental impact, and reuseApplication:Consult your owner's manual or contact your local Cat Dealer for more information.