Dorman 604-321 HVAC Blend Door Actuator - Main

Brand Dorman 604-321
Position Main
Material Plastic
Package Contents 1 Air Door Actuator
Switch Activation Type Rotary
Terminal Gender Male
Terminal Quantity 2
Terminal Type Pin
Fits Ford · 4 vehicles

OE-style replacement. Precision-engineered to match original quality and performance.

Rotary design. Provides smooth, reliable HVAC blend door control.

Plastic housing. Lightweight construction with a pin-terminal connection.

Cross-references 1T1Z18731A for the same application. See all 1.

$47.80Free shipping
In stock · usually ships same day before 1pm CST
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Order total $47.80
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Free returns within 60 days if it doesn't fit when fitment is verified.

Dorman 604-321 HVAC Blend Door Actuator

Dorman 604-321 is an HVAC heater blend door actuator built for specific Ford Transit Connect applications. It is precision-engineered to match the fit and operating characteristics of the original actuator, helping restore proper temperature blend control in the cabin.

Key Features

  • Rotary switch activation for blend door movement
  • 2-pin male terminal design for the specified vehicle connection
  • Plastic housing for HVAC actuator service applications
  • Direct replacement for the original-style actuator on select vehicles
  • Fits 2010-2013 Ford Transit Connect, Main

Detailed Description

This HVAC blend door actuator is designed for 2010-2013 Ford Transit Connect models in the Main position. Dorman 604-321 follows the original actuator’s basic design and electrical interface, including a rotary activation style and a 2-pin male terminal layout. For buyers searching for a Ford Transit Connect blend door actuator, HVAC temperature door actuator, or Dorman 604-321 replacement, this part addresses the common need to restore cabin air temperature control after actuator wear or failure. This part cross-references 1T1Z18731A for the same application.

Common Problems It Can Help Solve

  • Incorrect air temperature from the vents
  • Temperature stuck on hot or cold
  • Clicking or ticking noises from the HVAC case
  • Loss of blend door movement in the Main HVAC position
  • Unresponsive climate control temperature changes

Installation Notes and Tips

Verify the connector style, terminal count, and actuator position before installation. On 2010-2013 Ford Transit Connect vehicles, the actuator should be matched to the Main location shown in the fitment data. After installation, cycle the HVAC controls to confirm smooth blend door operation and proper temperature response. Dorman 604-321 is intended for direct replacement use where the original actuator has the same rotary, 2-pin configuration.

Quality Assurance

Dorman designs this HVAC heater blend door actuator to match the quality and performance of the original part on the listed vehicle applications. The part number 604-321 is built for the specified fitment and electrical configuration to support reliable HVAC service on Ford Transit Connect models.

This part fits 4 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
2013FordTransit ConnectMainProper installation of the ABS Wheel Speed Sensor is crucial for optimal performance.
2012FordTransit ConnectMainProper installation of the ABS Wheel Speed Sensor is crucial for optimal performance.
2011FordTransit ConnectMainProper installation of the ABS Wheel Speed Sensor is crucial for optimal performance.
2010FordTransit ConnectMainProper installation of the ABS Wheel Speed Sensor is crucial for optimal performance.
Directly replaces or cross-references 1 part number
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
1T1Z18731A