Product review (5 stars): OEM Replacement. Why pay Sears Prices?
This water actuator arm is listed as being a genuine OEM part. Amazon sells this part for less than half the cost at Sears.

Installation is easy, if you watch a YouTube video. (Just look up GE refrigerator dispenser disassembly to get a general idea.) The scariest part is popping the front housing plate off of the water dispenser. I'm always worried about breaking plastic retaining tabs, but this came right off.

You will need at least one medium-sized Phillips screwdriver. On the fridge I repaired, I also needed a smaller screwdriver to remove the pc board containing the panel switches. There was a ribbon cable running to this board, which I removed. To get the cable back into the board requires sliding open a plastic jaw clamp. (This type of connector grips the ribbon cable without the use of a female plastic cable-end. After seeing how the jaw works, it is probably something that could be opened with the board still in place.)

I would recommend this part sold by Caribbean Appliance. Quick shipping as well--it arrived two days earlier than I expected.