Dorman 604-203 HVAC Blend Door Actuator - Main

Dorman 604-203 HVAC Blend Door Actuator

This Dorman HVAC blend door actuator is built for specific Ford truck and van applications that need precise temperature control. It uses a rotary switch activation design and a durable plastic housing to match the function of the original actuator in the vehicle HVAC system.

Key Features

• Rotary switch activation type for HVAC temperature control operation
• Plastic construction for direct-fit replacement use
• Matches the quality and performance of the original blend door actuator on listed applications
• Designed for main temperature blend door service
• Part number 604-203 for easy identification

Detailed Description

Dorman 604-203 is an HVAC heater blend door actuator made for specific Ford F-250, Ford F-350, Ford Excursion, and Ford Windstar applications. It is engineered to replicate the original actuator’s function so the HVAC system can direct air through the proper temperature blend position. This part cross-references Standard Ignition ADR225 and Four Seasons 37532 for the same application.

Use this actuator when servicing the main temperature control on 1999-2007 Ford vehicles listed below. The Dorman 604-203 is a direct replacement choice for Ford F-250 Super Duty and Ford F-350 Super Duty HVAC repairs where the blend door actuator is no longer operating correctly.

Vehicle Fitment

• Fits 2005-2007 Ford F-250, Main — Temperature; Manual Temperature Control; w/Air Conditioning; Packaging Type: Box
• Fits 2005-2007 Ford F-250, Main — Temperature; wo/Air Conditioning; Packaging Type: Box
• Fits 2005-2007 Ford F-250 Super Duty, Main — Temperature; Manual Temperature Control; w/Air Conditioning; Packaging Type: Box
• Fits 2005-2007 Ford F-250 Super Duty, Main — Temperature; wo/Air Conditioning; Packaging Type: Box
• Fits 2005-2007 Ford F-350, Main — Temperature; Manual Temperature Control; w/Air Conditioning; Packaging Type: Box
• Fits 2005-2007 Ford F-350, Main — Temperature; wo/Air Conditioning; Packaging Type: Box
• Fits 2005-2007 Ford F-350 Super Duty, Main — Temperature; Manual Temperature Control; w/Air Conditioning; Packaging Type: Box
• Fits 2005-2007 Ford F-350 Super Duty, Main — Temperature; wo/Air Conditioning; Packaging Type: Box
• Fits 2002-2005 Ford Excursion, Main — Temperature; Manual Temperature Control; Packaging Type: Box
• Fits 2000-2004 Ford F-250, Main — Temperature control HVAC blend door actuator for box packaging.
• Fits 1999-2004 Ford F-250 Super Duty, Main — Temperature control HVAC blend door actuator for box packaging.
• Fits 2000-2004 Ford F-350, Main — Temperature control HVAC blend door actuator for box packaging.
• Fits 1999-2004 Ford F-350 Super Duty, Main — Temperature control HVAC blend door actuator for box packaging.
• Fits 1999-2003 Ford Windstar, Main — Temperature control HVAC blend door actuator for box packaging.
• Fits 2000-2001 Ford Excursion, Main — Temperature control HVAC blend door actuator for box packaging.

Common Repair Symptoms

• Inconsistent cabin temperature from the HVAC vents
• Temperature stuck on hot or cold
• Blend door movement issues during climate control adjustment
• HVAC system not responding correctly to manual temperature changes
• Loss of proper air temperature control in Ford F-250, Ford F-350, or Ford Excursion models

Installation Notes and Tips

Verify the vehicle year, model, and HVAC configuration before installation. This actuator is listed for the main temperature position, so confirm the original part location and connector style match the application. After installation, cycle the HVAC controls to confirm smooth blend door movement and proper temperature response.

Quality Assurance

Dorman engineers this blend door actuator to match the quality and performance of the original part on the specified vehicles. The 604-203 is built as a replacement HVAC component for direct service use on the listed Ford applications.