there was a frame change in 09, I know 1 of the retainers for the saddle bag is now a fixed position, but as far as the fender mounting holes, I would think there may be some differences, but if you want to mount something new on something old, it could be a need to do it and see what adapting needs there is.
I have mounted parts from my 03 RKC to my 15 FLHTKSE with some modifications