Product review (2 stars): Replacement Kitchenaid Dishwasher Door Link FAIL
I bought this part, because the description said "PART MEETS ALL OEM QUALITY STANDARDS".
Perhaps this is true, but just like the reviews I've read about other third party replacements for this same part, the link cords supplied are around an inch shorter than the original equipment, and the second roller makes a horrifying chatter/rubbing noise as the door is opened and closed.

It has been a few days and the noise is getting better.