Blower Motor. Item Type: HVAC Blower Motor & Resistor Kit. OE Number for Blower Motor Resistor : RU-381, BMR45, 2400-304257. Note: HVAC Heater Blower Motor w/ Fan Cage. OE Number for Blower Motor: 700020, 3010014, YL7Z18504AA, 1L2Z19805EB, 1L2Z19805EA.