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ARP water pump pulley stud kit supplies 5/16-24 x 3.250 inch black 12-point studs with a 2.000 inch fan spacer to set required fan-to-pulley clearance. The included studs and spacer match that specification for direct replacement, helping preserve proper pulley alignment and simplifying reassembly during routine service work.
ARP 5/16-24 X 3.250 black 12pt water pump pulley w/ 2.000in fan spacer stud kit
