Product review (5 stars): EXCELLENT!  Buy This Kit!
This is an excellent repair product for the Kenmore Elite 665.12773K310 (Stock No. 12773K) dishwasher.  It took me about fifteen minutes to complete the repair.  The included instructions are a bit unclear, however a video can be found on YouTube by searching Whirlpool W10712394.  Be aware that the video shows the Positioner Clips installed INCORRECTLY.  The "smooth" side should be toward the inside of the upper rack.  You will note some misalignment if they are positioned as per the video.  The paper instructions show them installed correctly.