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ARP water pump pulley stud kit supplies 5/16-24 x 1.750 inch black 12-point studs with a .500 inch fan spacer to set pulley clearance. The kit matches that thread, length and spacer specification for direct replacement where required, helping restore correct fan spacing and pulley clamping while simplifying reassembly and routine service operations.
ARP 5/16-24 X 1.750 black 12pt water pump pulley w/ .500in fan spacer stud kit
