Main Temperature HVAC Blend Door Actuator for 99-03 Lexus RX300 3.0L 604-941. 1999-2003 Lexus RX300 Base V6 3.0L Sport Utility Temperature Main. 1HVAC Heater Air Blend Door Actuator. To confirm that this part fits your vehicle, enter your vehicles Year, Make, Model, Trim and Engine in the Compatibility Table.