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The ARP water pump pulley stud kit includes 5/16-24 x 4.250 black hex studs with a 3.000-inch fan spacer, provided as a stud-and-spacer assembly for pulley installation. It's intended for use where a stud-mounted water pump pulley with spacer is required; components are supplied together so you can replace or upgrade the pulley mounting hardware to match the specified dimensions.
ARP 5/16-24 X 4.250 Black Hex Water Pump Pulley w/ 3.000in Fan Spacer Stud Kit
