Product review (5 stars): Fit and Worked.  What more can be asked?
Replacement for one that no longer worked in an older KitchenAide machine.  It was perfect, exact fit, etc.  Also, it was cheaper here than on any of the other appliance sites I checked.  Heck, can't go wrong with Amazon.  All I had to do was push it into the built in plug in the machine and connect it with 3 cap nuts.  Then replace the tank, clean the machine with ice maker cleaner, replace the rest of it, and away it went.