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The ARP water pump pulley stud kit includes black 5/16-24 hex studs 3.750 inches long with a 2.500 inch fan spacer, supplied as a stud kit for mounting a water pump pulley and fan spacer. The description lists the thread size, stud length and spacer dimension so you can confirm these specifications for compatibility with your pump and fan assembly before purchase.
ARP 5/16-24 X 3.750 Black Hex Water Pump Pulley w/ 2.500in Fan Spacer Stud Kit
