Product review (4 stars): Worked after reworking the solenoid connectors
I did get this to work, however, it was not a drop in replacement. I had to take the bracket for the solenoids off and flip the terminals 180 degrees so that the wire harness could connect.  Also, the tubing on the Whirlpool Model GS6SHAXLL03 fridge was twist on and the SUPCO was push on.  So I had to cut the tubing flanges off in order to install.  Since I am handy I was able to make this work, but for the average homeowner I don't think they would figure it out.  So look at the picture and notice the direction of water connections and Solenoid connectors before you buy!