ARP water pump pulley stud kit, 5/16‑24 x 4.000 stainless steel 12‑point studs with a 2.750 inch fan spacer. The kit pairs the listed stud length with a 2.750in spacer to set fan clearance and securely fasten the water pump pulley, offered as a single hardware package for applications needing that spacer and stud combination.
ARP 5/16-24 X 4.000 SS 12pt water pump pulley w/ 2.750in fan spacer stud kit