Leaking Water Dispenser

Hi,
I have a water dispenser on the front of the fridge that is leaking. Everything seems to work fine (water and ice), but in between uses water is still dripping out of the water dispenser.
I would like to order a part, but am unsure what would fix it.
Thanks

Very likely the problem is a bad water inlet valve on the back of the refrigerator.

Here are the breakdown diagrams and http://www.appliancepartspros.com/partsearch/model.aspx?model_id=5139130

Gene.