HD-OEM: 11218Part Number: 12-0209 UOM: 10 - PK Summary:Pinion gear shaft key is taper side, semi-circle style.Fitment: FL 1981-1984 FX 1981-1984 FLT 1979-1990 FXR 1984-1990 FLST 1986-1990 FXST 1984-1990 XL 1981-1990 Country of Origin: USA