Dorman 604-270 HVAC Blend Door Actuator - Main

HVAC Blend Door Actuator for Ford Escape and Mercury Mariner

Dorman 604-270 is a rotary HVAC blend door actuator built for specific Ford and Mercury applications. It is precision-engineered to match the quality and performance of the original heater blend door actuator on the listed vehicles, helping restore proper air inlet and temperature control operation.

Key Features

• Rotary switch activation type for HVAC blend door control
• Plastic housing construction
• Direct replacement style for the original actuator on listed applications
• Fits the main HVAC air inlet position
• Designed for Dual Zone Automatic Temperature Control applications
• Part number 604-270 for easy identification

Detailed Description

This Dorman HVAC blend door actuator is made for 2010-2012 Ford Escape and 2010-2011 Mercury Mariner models with Dual Zone Automatic Temperature Control and air inlet main position requirements. The rotary design helps control the blend door movement that directs heated and cooled air through the HVAC system. If you are replacing a failed Dorman 604-270 unit or sourcing a direct-fit replacement for the same application, this part provides the correct fitment profile for the listed vehicles.

This part cross-references Standard Ignition ADR4243 for the same application.

Common Problems This Part Can Address

• Incorrect cabin temperature from a blend door that no longer responds properly
• Air stuck on hot or cold due to actuator failure
• Loss of air inlet control in the HVAC system
• Clicking or repeated movement from a worn actuator gear set
• Uneven temperature control in dual-zone HVAC operation

Installation Notes and Tips

Verify the vehicle year, make, model, and HVAC configuration before installation. This actuator is listed for the main air inlet position on compatible Ford Escape and Mercury Mariner applications, so confirm the original part location and connector style match before replacement. After installation, cycle the ignition and HVAC controls to allow the system to relearn actuator position if required by the vehicle.

Quality Assurance

Dorman states this heater blend door actuator is precision-engineered to match the quality and performance of the original part on the specified vehicle years, makes, and models. Use the part number 604-270 to confirm application details during ordering and service.