Dorman 604-266 HVAC Blend Door Actuator - Main
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Dorman

Dorman 604-266 HVAC Blend Door Actuator - Main

Brand Dorman 604-266
Position Main
Material Plastic
Package Contents Actuator
Switch Activation Type Rotary
Fits Lincoln and Ford · 11 vehicles

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

Rotary activation. Smooth, accurate control for HVAC blend door operation.

Plastic construction. Lightweight actuator housing for dependable operation.

Cross-references Dayco 73101, ADS270 and J04064 for the same application. See all 4.

$41.94Free shipping
In stock · usually ships same day before 1pm CST
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Free returns within 60 days if it doesn't fit when fitment is verified.
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HVAC Blend Door Actuator for Lincoln LS and Thunderbird

Dorman 604-266 is a rotary HVAC blend door actuator built to match the fit and function of the original unit on select Ford and Lincoln vehicles. It is made with a plastic housing and is intended for vehicles requiring outside air control, making it a direct replacement for common temperature and airflow blend door issues.

Key Features

  • Rotary switch activation type for HVAC blend door control
  • Plastic construction for OE-style fit and function
  • Direct replacement actuator for the heater and air distribution system
  • Designed for select 2000-2006 Lincoln LS applications
  • Designed for select 2002-2005 Ford Thunderbird applications
  • Package contents: actuator

Detailed Description

This Dorman HVAC blend door actuator, part number 604-266, is engineered to replicate the operation of the original actuator used in specific Lincoln LS and Ford Thunderbird models. It controls the blend door position in the HVAC system, helping regulate cabin temperature and airflow direction. This part cross-references Dayco 73101 for the same application. Compatible With 2000-2006 Lincoln LS, Main, and 2002-2005 Ford Thunderbird, Main. The 604-266 part number is a practical OE-style replacement for vehicles that require outside air operation and a box-style configuration.

Common Problems This Part Can Address

  • Inconsistent cabin temperature control
  • Air stuck on hot or cold settings
  • HVAC airflow not changing as commanded
  • Blend door movement issues caused by a worn actuator
  • HVAC system response problems in Lincoln LS and Thunderbird models

Installation Notes and Tips

Verify the vehicle year, make, model, and HVAC configuration before ordering. This actuator is listed for Main position applications and for vehicles requiring outside air, so matching the original part style is important. Confirm connector and mounting alignment against the removed unit before installation. For best results, inspect the blend door and related HVAC components for binding or damage that could affect actuator performance.

Quality Assurance

Dorman manufactures this blend door actuator as a precision-engineered replacement intended to match the quality and performance of the original part on the listed applications. The 604-266 is built for direct-fit service on select Ford Thunderbird and Lincoln LS HVAC systems.

Related reading

This part fits 11 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
2006LincolnLSMainFits vehicles requiring outside air, comes in a box.
2005FordThunderbirdMainFits vehicles requiring outside air, comes in a box.
2005LincolnLSMainFits vehicles requiring outside air, comes in a box.
2004FordThunderbirdMainFits vehicles requiring outside air, comes in a box.
2004LincolnLSMainFits vehicles requiring outside air, comes in a box.
2003FordThunderbirdMainFits vehicles requiring outside air, comes in a box.
2003LincolnLSMainFits vehicles requiring outside air, comes in a box.
2002FordThunderbirdMainFits vehicles requiring outside air, comes in a box.
2002LincolnLSMainFits vehicles requiring outside air, comes in a box.
2001LincolnLSMainFits vehicles requiring outside air, comes in a box.
2000LincolnLSMainFits vehicles requiring outside air, comes in a box.
Directly replaces or cross-references 4 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Dayco — 73101ADS270J04064XW4Z19E616AA