Crankshaft press-on bearing race kit for Twin Cam A, non balanced, engines. Kit includes right and left side (pinion shaft & sprocket shaft) crankshaft races with the left side thrust washers. These Feuling press on races have a precision ground outer diameter finish and are designed to be true to size producing the correct OD after proper press-on installation. Used on Twin Cam A (Dyna and Touring) engines, will not fit Softail. OEM replacement reference none.