Get climate-control airflow moving where it should with the Four Seasons HVAC Mode Door Actuator 73724, a direct-fit replacement for the 2015-2019 Hyundai Sonata. This small electric actuator drives the HVAC mode door, positioning it to route air between the dash vents, floor, and defrost outlets on command from the climate controls. When a mode door actuator fails, you may notice air stuck coming from one set of vents, clicking or knocking behind the dash, or airflow that won't switch — if a faulty actuator is the cause, this unit replaces it.
Complete assembly: includes the lever arm, gear, cam gear, hardware, and linkage as applicable.
Quality internals: built with an internal motor, drive gears, electronics, and connections.
Tested unit: checked for function, durability, and longevity, and built to match the fit and function of the original.
Backed by Four Seasons: over 50 years of mobile A/C experience behind every part.
This is the mode door actuator for your Sonata's air-distribution system. See the Buyer's Guide tab for engine-level fitment details.
This part cross-references / interchanges with the following part numbers:
ACT2074IM, 73724, BDAA1438, 97157C2000, DA1662
Frequently Asked Questions
What does the mode door actuator do?
It's a small electric motor that moves the HVAC mode door, positioning it to direct airflow between the dash vents, floor, and defrost outlets based on your climate-control settings.
Does this fit my vehicle?
It's a direct-fit replacement for the 2015-2019 Hyundai Sonata. Check the Buyer's Guide tab to confirm it matches your specific vehicle.
What are the signs a mode door actuator may need replacing?
Common signs include air stuck coming from only one set of vents, airflow that won't switch modes, or clicking/knocking sounds behind the dash. Diagnose the cause before replacing.
What's included with actuator 73724?
It includes the lever arm, gear, cam gear, hardware, and linkage as applicable, along with the internal motor, drive gears, electronics, and connections.
Which part numbers does this actuator replace?
It cross-references ACT2074IM, BDAA1438, 97157C2000, and DA1662. Match your original number to confirm the correct replacement.
HVAC Air Door ActuatorOur products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile a/c experience, fix it once and fix it right with Four...
Keep your dash vents directing air where you set it with the Four Seasons HVAC Defrost Mode Door Actuator / HVAC Mode Door Actuator 73512. This electric actuator drives the mode door inside the HVAC...
HVAC Air Door ActuatorOur products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile a/c experience, fix it once and fix it right with Four...
HVAC Air Door ActuatorOur products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile a/c experience, fix it once and fix it right with Four...
HVAC Air Door ActuatorOur products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile a/c experience, fix it once and fix it right with Four...
WARNING:
These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to
www.P65Warnings.ca.gov.
