Product review (5 stars): Check model number on door to get the right one.
This was an exact fit for my dishwasher. Check you model number on the side of the door before ordering.  Use a screwdriver to press in the little clips that hold the ends on the slides and remove these clips to slide out the rack. (the procedure is shown on You-tube).  It is much easier to replace the wheels with the rack upside down on the kitchen table. The old wheels snap off and the new ones snap on.  It is a little tricky, but after the first one went on it was easy to figure it out.  These appear to be a little bit better than the originals.