Dorman 604-943 HVAC Blend Door Actuator - Left Main
OE Quality 60-Day Returns
Dorman

Dorman 604-943 HVAC Blend Door Actuator - Left Main

Brand Dorman 604-943
Position Left Main
Material Plastic
Package Contents 1 Air Door Actuator
Switch Activation Type Rotary
Terminal Gender Male
Terminal Quantity 5
Terminal Type Blade
Fits Lexus · 15 vehicles

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

Rotary design. Provides smooth, reliable control of HVAC airflow.

Plastic housing. Lightweight construction with a blade terminal connection.

Cross-references 871060E030 for the same application. See all 1.

$166.35Free shipping
In stock · usually ships same day before 1pm CST
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Order total $166.35
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Free returns within 60 days if it doesn't fit when fitment is verified.
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Dorman 604-943 HVAC Blend Door Actuator

Dorman 604-943 is an HVAC heater blend door actuator built for specific Lexus RX applications. It is engineered to match the quality and performance of the original actuator, with a rotary switch activation design, 5 blade terminals, and a male terminal layout for direct replacement use.

Key Features

  • HVAC blend door actuator for temperature control operation
  • Rotary switch activation type
  • 5 blade terminals with male terminal design
  • Plastic housing for OE-style fit and function
  • Direct replacement for select Lexus RX350, RX400h, and RX330 models
  • Cross-reference: Toyota 871060E030

Detailed Description

This Dorman HVAC blend door actuator, part number 604-943, is designed for the left main temperature control position on select Lexus RX vehicles. It restores blend door movement so the HVAC system can direct heated and cooled air properly through the cabin. Applications include 2007-2009 Lexus RX350, 2006-2008 Lexus RX400h, and 2004-2006 Lexus RX330, with fitment notes for U.S.-built and Japan-built RX350 and RX330 models where listed.

For buyers searching for a Lexus RX350 blend door actuator, RX400h HVAC actuator, or RX330 temperature actuator replacement, this part number 604-943 provides a vehicle-specific solution. It is a practical OE-style replacement for the original actuator used in the left main temperature circuit.

What It Is Used For

  • Restoring cabin temperature control on the left main HVAC blend door
  • Correcting inconsistent hot or cold air delivery
  • Replacing a worn actuator that no longer moves the blend door properly
  • Addressing HVAC temperature response problems in Lexus RX350, RX400h, and RX330 models
  • Replacing a failed actuator that causes clicking or loss of temperature adjustment

Installation Notes and Tips

Verify the vehicle year, model, build location, and left main temperature position before ordering. Match the connector style, terminal count, and actuator orientation to the original unit. Because HVAC access can vary by vehicle configuration, compare the replacement part to the removed actuator before final installation.

Quality Assurance

Dorman engineers this actuator to match the quality and performance of the original blend door actuator on the listed vehicles. Part number 604-943 is built as a direct-fit replacement for the specified Lexus RX applications.

Related reading

This part fits 15 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
2009LexusRX350Left MainTemperature; Built in U.S.A.; Packaging Type: Box
2009LexusRX350Left MainTemperature; Built in Japan; Packaging Type: Box
2008LexusRX350Left MainTemperature; Built in U.S.A.; Packaging Type: Box
2008LexusRX350Left MainTemperature; Built in Japan; Packaging Type: Box
2008LexusRX400hLeft MainTemperature control HVAC blend door actuator for box packaging.
2007LexusRX350Left MainTemperature; Built in U.S.A.; Packaging Type: Box
2007LexusRX350Left MainTemperature; Built in Japan; Packaging Type: Box
2007LexusRX400hLeft MainTemperature control HVAC blend door actuator for box packaging.
2006LexusRX330Left MainTemperature; Built in Japan; Packaging Type: Box
2006LexusRX330Left MainTemperature; Built in U.S.A.; Packaging Type: Box
2006LexusRX400hLeft MainTemperature control HVAC blend door actuator for box packaging.
2005LexusRX330Left MainTemperature; Built in Japan; Packaging Type: Box
2005LexusRX330Left MainTemperature; Built in U.S.A.; Packaging Type: Box
2004LexusRX330Left MainTemperature; Built in U.S.A.; From 10/03; Packaging Type: Box
2004LexusRX330Left MainTemperature; Built in Japan; Packaging Type: Box
Directly replaces or cross-references 1 part number
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
871060E030