Product review (4 stars): Icemaker water valve
Good replacement for a valve that had gone bad.
Replacing the water line from the valve to the icemaker was a pain, not the fault of the seller or the valve, but whoever designed the refrigerator.  You have to press the line into the valve to engage some barbs to hold it in place.  To release, you have to push the collar on the valve in, and the old one didn't want to let go!