HD-OEM: 40221-85APart Number: 20-0498 UOM: 1 - EA Summary:Chrome rear drive pulley is 1-1/2" wide accepts indexing nut seal and seal spacer. The other diameter measures 12-1/2" edge to edge.Fitment: FL 1979-1984 4-speed FX 1979-1984 4-speed FXST 1986-1999 FLST 1986-1999 Country of Origin: Imported