Thanks for posting. In general, serial numbers and other codes aren't particularly helpful in identifying sliding glass door roller replacements. Traco doors are sometimes associated with the rollers that I have listed on this page. However, the only reliable way of identifying the right replacements is to remove the old rollers from the door and compare them with our selection. Pay attention to both the visual appearance as well as the dimensions. If none of these seem right, please send us photos of your existing rollers, and also tell me the width and height of the roller, as well as the wheel diameter. The videos below shows how to remove and replace sliding glass door rollers, as well as the crucial replacement information. Check them out.