HomeHVAC > Temperature Controls and Related ComponentsDorman 604-257 HVAC Blend Door Actuator - Main
Part #: 604-257

Dorman 604-257 HVAC Blend Door Actuator - Main

Main
⚙️ 4 vehicles fit this part
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Select your vehicle to confirm fitment
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✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Ford, Focus
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🚚Fast Shipping — Most orders ship same business day before 1pm CST

Overview of the Dorman HVAC Blend Door Actuator

The Dorman 604-257 HVAC Blend Door Actuator is designed specifically for Ford Focus models, providing reliable control of your vehicle's climate system. This actuator features a rotary switch activation type and is constructed from durable plastic to ensure consistent performance.

  • Rotary switch activation for precise HVAC control
  • Durable plastic construction for long-lasting use
  • Compatible with Ford Focus models
  • Includes one actuator per package
  • OEM-quality replacement part number 604-257

Detailed Product Description

This HVAC blend door actuator from Dorman is engineered to regulate the airflow and temperature inside your Ford Focus by controlling the blend door position. The rotary switch activation type allows for smooth and accurate adjustments, ensuring your vehicle’s heating and cooling system operates efficiently. Made from high-quality plastic, this actuator balances durability with lightweight design, helping maintain the integrity of your HVAC system without adding unnecessary weight.

Common Applications and Problem Resolution

This actuator is used to control the blend door in the HVAC system of Ford Focus vehicles. It addresses several common issues, including:

  • Inconsistent cabin temperature due to blend door malfunction
  • Unresponsive or stuck HVAC controls
  • Unusual noises from the HVAC system when adjusting temperature
  • Failure of the blend door to move, causing poor airflow distribution

Installation Notes and Tips

Installation of the Dorman 604-257 HVAC Blend Door Actuator requires basic automotive tools and some experience with vehicle HVAC systems. It is recommended to disconnect the vehicle battery before installation to avoid electrical issues. Carefully remove the old actuator and ensure the blend door is in the correct position before installing the new unit. Verify proper operation by testing the HVAC controls after installation.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards, ensuring reliable fit and function for your Ford Focus. The 604-257 HVAC Blend Door Actuator undergoes rigorous quality control to maintain consistent performance. This part is backed by Dorman’s limited warranty, providing coverage against defects in material and workmanship under normal use.

BrandDorman
Part Number604-257
MaterialPlastic
Package ContentsActuator
Switch Activation TypeRotary

This part fits 4 vehicles. Search below:

YearMakeModelPositionNotes
2011FordFocusMainFits vehicles requiring outside air, comes in a box.
2010FordFocusMainFits vehicles requiring outside air, comes in a box.
2009FordFocusMainFits vehicles requiring outside air, comes in a box.
2008FordFocusMainFits vehicles requiring outside air, comes in a box.

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

730908S4Z19E616AADS261J04055

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.