Global Parts 1712063 HVAC Mode Door Actuator

HVAC Mode Door Actuator for GM Trucks and SUVs

Global Parts 1712063 is an HVAC mode door actuator that helps direct cabin airflow to the selected vents. It is used in climate control systems where the actuator responds to the dash control setting and moves the mode door, blend door, or recirculation function as required.

Compatible With 1988-1994 Chevrolet and GMC full-size truck and SUV applications, including Chevrolet C1500, K1500, C2500, K2500, C3500, Blazer, and Suburban models, plus GMC C1500, K1500, C2500, K2500, C3500, Yukon, and related platforms. This part number, 1712063, also cross-references Dorman - OE Solutions 604-102 for the same application.

• HVAC mode door actuator for vent selection and airflow routing
• Supports recirculation and outside-air control on listed applications
• Direct replacement style for manual A/C and HVAC systems where specified
• Fits 1988-1994 Chevrolet and GMC truck and SUV platforms with listed notes
• Global Parts 1712063 for service on older GM climate control systems

Detailed Product Information

The actuator adjusts to the climate setting selected by the driver and moves the internal HVAC doors that control where air enters and exits the cabin. In the manufacturer description, the blend door manages air temperature, the mode door opens and closes selected vents, and the recirculation function controls air intake. That makes this component a key part of restoring proper airflow direction in GM heating and air conditioning systems.

Use Global Parts 1712063 when servicing Chevrolet and GMC applications such as C1500, K1500, C2500, K2500, C3500, Blazer, Suburban, and Yukon models from the listed years. Verify the notes for each vehicle, especially where the listing specifies manual A/C controls or HVAC recirculation door actuator applications.

Common Problems This Part Can Address

• Air blowing from the wrong vents
• Stuck airflow between defrost, panel, and floor settings
• Recirculation door not changing position
• Outside-air or fresh-air control not responding correctly
• Inconsistent cabin temperature control caused by actuator movement issues

Installation Notes and Fitment Tips

Confirm the vehicle year, make, model, and HVAC configuration before ordering. Fitment varies by application notes, including manual A/C controls and recirculation door use on certain Chevrolet and GMC trucks and SUVs. Compare the original actuator connector, mounting location, and door function to the removed part before installation.

After installation, cycle the HVAC controls through all modes to verify proper door movement and airflow direction. If the system still does not respond correctly, inspect the related HVAC door, control head, and wiring for additional faults.

Quality Assurance

Global Parts 1712063 is built as an OE-style replacement actuator for the listed GM applications. It is supported by the published interchange references and fitment data provided for Chevrolet and GMC service use.