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The ARP hex stud kit is a hardware set for mounting a water pump pulley and fan spacer, specified as 5/16-24 x 2.250 hex studs with a 1.000 in fan spacer. The kit uses SS (stainless steel) hardware and is intended to secure the pulley and spacer assembly as described. Use this stud kit when the listed thread size, stud length, and spacer thickness are required for your pulley installation.
ARP 5/16-24 X 2.250 SS Hex Water Pump Pulley w/ 1.000in Fan Spacer Stud Kit
