The GE WD19X25278 is a genuine OEM Diverter Valve Kit for Dishwashers that controls the flow of water to the spray arms. The WD19X25278 replaces the following part numbers: WD00X25260, WD18X21678, WD19X25259. It is recommended that either the manufacturer of your appliance or the service manual for your appliance be referenced prior to selecting a part for replacment to insure that the correct part is purchased.