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The ARP insert washer pack includes ten 1/2-inch inner-diameter insert washers intended for use in engine and drivetrain hardware applications. These precision washers provide a consistent seating surface for fasteners and are packaged as a 10-count set to support rebuilds or hardware refreshes. Use them wherever 1/2-inch ID insert washers are specified for secure, repeatable clamping.
ARP 1/2inch Inner Diameter Insert Washers (10 pack)
