If you are experiencing starter problems and only hear a click when you push the starter button, you might not need to replace the whole starter assembly. Chances are you might only need to replace the key solenoid parts that normally wear out. Includes everything needed to rebuild your starter solenoid. Fits 1991-2006 Harley Big Twin Twin Cam Models (except 2006 Dyna) & 1981-Later Harley Sportster XL Models Replaces HD# 31604-91