The ARP stainless steel water pump pulley stud kit includes 5/16-24 x 3.750 in hex studs paired with a 2.500 in fan spacer, intended to secure a water pump pulley and its fan spacer as described. The listing presents the thread size, stud length, and spacer dimension so technicians can match the hardware to the specified pulley assembly during reinstallation or repair.
ARP 5/16-24 X 3.750 SS Hex Water Pump Pulley w/ 2.500in Fan Spacer Stud Kit