Product review (1 stars): Same part Number but not the same part
For those who own a Jenn-Air cooktop: you know that the top piece of the knobs come off annoyingly often.  There's not much surface to glue the thing back on so it becomes a continuous problem.  So it happens one day that little piece comes off never to be found again.  The part number stamped under the knob is KIP 5075.  After much searching, I finally located one and noted that the number stamped was the same KIP 5075.  Upon receipt it looked the same, but alas, it did not fit onto the stove.  The bottom was a different configuration.  The saving grace was that I was able to pry off the top piece and attach it to my existing bottom.  So, it has one star; then again, it has five stars since my problem is solved.