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This ARP water pump pulley stud kit includes 5/16-24 x 2.500 black hex studs paired with a 1.250 in fan spacer, supplied as a hardware set for water pump pulley and fan spacer attachment. It’s intended for replacing or refreshing pulley fasteners during engine service. Confirm thread size and spacer length for compatibility with your pulley and fan assembly before installation.
ARP 5/16-24 X 2.500 Black Hex Water Pump Pulley w/ 1.250in Fan Spacer Stud Kit
