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ARP water pump pulley stud kit uses 5/16-24 x 1.250 inch black 12-point studs intended for water pump pulley attachment. These studs match that thread size and length specification, providing a direct-replacement fastening solution where a 12-point, black-finish stud is required and helping simplify pulley reassembly during service.
ARP 5/16-24 X 1.250 black 12pt water pump pulley stud kit
