Product review (5 stars): Replaces old one quickly and easily and it works!
I have a Samsung fridge, model # RF266AEBP with an inside water dispenser.  There is a plastic tab behind the rubber part that broke off. So I went searching.  This part replaces your old assembly.  It snaps out, the old one snaps in.  What I did was use two small screwdrivers and found the two notches that reside on the far side of the assembly.  Look at your new one and you will see the same notches.  Line up your screwdrivers and pry out the old one.  It will make some ugly snapping noises but if you're careful, it will pop the first couple of tabs and then you can work the rest of the tabs.  You will see the water line is not really attached to it.  Line up the water line with the hole in your new assembly and snap in place starting from the top, working your way down.  You are done!