Direct replacement- HVAC heater blend door actuator replacement 2005-2007 for Cadillac for STS. Durable structural design- Heater blend door levers are designed and produced in exacting standards. Rugged internal circuit board can resist heat and vibration that ensure a longer life time.. Super performance- Blend door actuator motor with super performance. The temperature can be freely adjusted to effectively help control the flow and temperature of the air entering the vehicle interior,thereby improving driving comfort.. Easy installation: It will take about 15 minutes to complete the installation. Direct replacement door actuator is a perfect and excellent functional part to solve the problem of ilation and noise in air conditioner.. Replace Part Number- OEM Air Door Actuator Replaces OE number: 604-173 89023388 604-173 604173 89023388 604173 73181 1573022 V57770023.
