Dorman 604-038 HVAC Blend Door Actuator - Main

HVAC Blend Door Actuator for Ram and Dodge

Dorman 604-038 is a rotary HVAC blend door actuator built to match the fit and function of the original unit on select Ram and Dodge trucks. It is used in heating and air conditioning systems where precise door movement is needed for temperature, mode, defrost, or recirculation control.

Key Features

• Rotary switch activation type for HVAC door control
• Plastic housing for application-specific fitment
• Direct replacement style for select Ram 1500, Ram 2500, Ram 3500, and Dodge Ram trucks
• Packaged as an actuator only
• Cross-references Standard Ignition ADR4209 and SKP SK604038 for the same application

Detailed Description

This Dorman HVAC blend door actuator, part number 604-038, is precision-engineered to match the original actuator used in specific 2009-2012 Ram and Dodge Ram applications. It is used in HVAC systems that control air distribution and temperature blend functions, including mode selection, defrost, blend, and recirculation on vehicles with automatic temperature control or air conditioning configurations. For buyers searching for a 2011 Ram 1500 HVAC blend door actuator or a 2010 Dodge Ram 2500 blend door actuator, this replacement is built for the listed main-position applications.

Compatible With 2012-2009 Ram and Dodge Ram trucks across the listed HVAC configurations, Dorman 604-038 supports direct replacement needs where the original actuator has failed or become inaccurate. The part number 604-038 is also referenced by OE-style interchange numbers for the same application.

What It Helps Fix

• Incorrect cabin temperature control
• Airflow stuck on one vent mode
• Defrost function not responding properly
• Recirculation door movement issues
• Blend door position errors in the HVAC system

Installation Notes and Tips

Verify the vehicle year, make, model, and HVAC configuration before ordering. This actuator is listed for main-position applications on select Ram 1500, Ram 2500, Ram 3500, and 2009 Dodge Ram 1500 models, including ATC and air-conditioning-specific variants. Confirm the original connector style and actuator location against the removed part before installation.

Quality Assurance

Dorman states this heater blend door actuator is engineered to match the quality and performance of the original part on the specified vehicles. It is built as an OE-style replacement for the listed applications and is intended to restore proper HVAC door movement in the factory system.