Honestly I wouldn't worry about it. I don't think the saddlebag locks are the same on the other bikes and if you did get a replacement lock then it wouldn't be the same as the ignition. That cover is only there to keep large objects out of there to prevent the lock from being jammed from junk getting in there. It doesn't keep dust or water out and there is the filler cap flap that does the rest of the job. if it really bothers you just yank it out altogether as it really isn't necessary on the filler cap since it has the flap.