Product review (2 stars): Not the same as what was on our dishwasher
The string assembly was the part I really needed because that part breaks SO often on this dishwasher.  We thought that it might improve the integrity of the system if we replaced the whole assembly on both sides.  Because the new roller parts were slimmer than the old ones, doing that caused the door to sound like a loud foghorn with each opening/closing!  We went back to the old rollers and just replaced the string assemblies.  Those parts work fine and the door opens silently.