Dyna Glide ModelsSuper Glide, Super Glide Sport, Super Glide Custom, Dyna Glide Convertible, Super Glide T-Sport, Dyna Glide Police, Dyna Switchback, Low Rider, Street Bob, Fat Bob and Wide Glide.
The 03 fender is about an inch narrower than your 06. \\; I don't believe it would be practical to try to make it fit. \\; Look at an 06 or later WG of Fat Bob fender. \\; Also, Harley offers a Bobtail fender kit, but you gotta give em some hefty bucks for it.