This General Electric Pressure Regulator For Range is compatible with General Electric brands. Part #WB19K10055 replaces WB19K27, Y-68506-51AF, Y-68506-51, Y68506-51, WB19K0027, 1603293, AP4538742, PS2577558. Pressure Regulator: controls the amount of gas influx into the heating assembly of the oven. When the pressure reaches a certain level the regulator cuts off the inflow.