Aluminum Billet Alternator Pulley fits a 6-Rib belt 3/4" wide

overall diameter is 2 9/16ths across, 1 1/6ths thick (not including the hub) 1 1/4 with it, center shaft hole is 3/4"

hole spacing on center for the three tapped holes is 1 9/32nds, only weighs 5 ounces