Can't find part number for GE refrigerator

We have a slow leak from the water dispenser in our GE side by side count-depth refrigerator, model number GZS22DGJWW. From what I understand, I need to turn off the water and see if the leak stops. If it does, it's probably the inlet valve. I've done some advance work looking for the part number of the valve, but I can't find it online. Can anyone help?