Made by aftermarket and replaces Harley part number 66204-74. This is older inventory from a closed shop and has never been installed. It fits the Electra Glide models with large battery made from 1974 thru 1979. Can be used on earlier models and later (65-85) with minor modification. V Twin part number 42-9910, has tape and tags from years ago, will need a little cleaning and polish.