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ARP water pump pulley stud kit includes 5/16-24 x 2.500 inch black 12-point studs paired with a 1.250 inch fan spacer to set defined pulley clearance. These components match the listed thread and spacer dimensions for direct replacement, delivering the correct spacing and clamping needed for pulley attachment while easing reassembly during maintenance.
ARP 5/16-24 X 2.500 black 12pt water pump pulley w/ 1.250in fan spacer stud kit
