HomeHVAC > Temperature Controls and Related ComponentsFour Seasons 73518 HVAC Blend Door Actuator - Main
Part #: 73518

Four Seasons 73518 HVAC Blend Door Actuator - Main

Air Door Actuator, Main
⚙️ 31 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Air Door Actuator, Main
🚗Fitment: Lexus, LS460 and LS600h
🔄Easy Returns — Return within 60 days for a full refund
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Overview of Four Seasons Air Door Actuator 73518

The Four Seasons Air Door Actuator 73518 is designed to restore proper HVAC airflow control in select Lexus and Toyota vehicles. This HVAC blend door actuator features a female door linkage and a 5-terminal pin configuration, ensuring precise operation within your vehicle's climate control system.

  • Compatible with Lexus HS250h, IS250, IS350, Land Cruiser, LS460, LS600h, and LX570 models
  • Female door linkage for secure and accurate fitment
  • 5 terminal pins for reliable electrical connection
  • Part number 73518 for easy identification and replacement
  • Part of the Four Seasons Air Door Actuator product line

Product Line Details: Four Seasons Air Door Actuator

The Four Seasons Air Door Actuator line focuses on HVAC blend door actuators engineered to meet OEM specifications. This product line provides components that control airflow direction and temperature blend within the vehicle’s HVAC system. The 73518 actuator is part of this line, offering compatibility and performance tailored for specific Lexus and Toyota models.

Detailed Product Description

The HVAC blend door actuator 73518 from Four Seasons is engineered with a female door linkage, which ensures a secure mechanical connection to the blend door shaft. The actuator’s 5-terminal pin design supports stable electrical communication with the vehicle’s climate control module. This actuator is essential for regulating the mix of hot and cold air inside the cabin, maintaining comfort and system efficiency. It is specifically designed for use in Lexus HS250h, IS250, IS350, Land Cruiser, LS460, LS600h, and LX570 models, providing a direct replacement that meets factory fit and function requirements.

Common Issues Addressed by This HVAC Blend Door Actuator

  • Inconsistent cabin temperature due to blend door malfunction
  • HVAC system stuck on one temperature setting
  • Unusual noises from the HVAC system blend door area
  • Failure of airflow direction control within the HVAC system
  • Intermittent or no response from climate control adjustments

Installation Notes and Tips

  • Verify vehicle compatibility with Lexus and Toyota models listed before installation
  • Disconnect the battery before removing the old actuator to prevent electrical shorts
  • Carefully remove the HVAC panel to access the blend door actuator location
  • Ensure the female door linkage aligns properly with the blend door shaft
  • Test actuator operation before reassembling the dashboard components

Quality Assurance and Warranty

Four Seasons manufactures the 73518 Air Door Actuator to meet or exceed OEM standards for durability and performance. While specific warranty details may vary, Four Seasons typically offers coverage against defects in materials and workmanship. This ensures reliable operation and peace of mind when replacing the HVAC blend door actuator in your Lexus or Toyota vehicle.

BrandFour Seasons
Part Number73518
PositionAir Door Actuator, Main
Door LinkageFemale
StyleHVAC Air Door Actuator
Terminal Pin Qty.5

This part fits 31 vehicles. Search below:

YearMakeModelPositionNotes
2017LexusLS460MainAir Door Actuator
2014LexusIS250N/ANo. 3
2014LexusIS350N/ANo. 3
2014LexusLS460MainAir Door Actuator
2014LexusLS600hMainAir Door Actuator
2013LexusLS460MainAir Door Actuator
2013LexusLS600hMainAir Door Actuator
2013LexusLX570N/ATo 1/2013
2013ToyotaLand CruiserMainTo 1/2013
2012LexusHS250hRightTo 1/30/12
2012LexusLS460MainAir Door Actuator
2012LexusLS600hMainAir Door Actuator
2011LexusHS250hRight
2011LexusLS460MainAir Door Actuator
2011LexusLS600hMainAir Door Actuator
2011LexusLX570N/A
2011ToyotaLand CruiserMain
2010LexusHS250hRight
2010LexusLS460MainAir Door Actuator
2010LexusLS600hMainAir Door Actuator
2010LexusLX570N/A
2010ToyotaLand CruiserMain
2009LexusLS460MainAir Door Actuator
2009LexusLS600hMainAir Door Actuator
2009LexusLX570N/A
2009ToyotaLand CruiserMain
2008LexusLS460MainAir Door Actuator
2008LexusLS600hMainAir Door Actuator
2008LexusLX570N/AFrom 11/07
2008ToyotaLand CruiserMainFrom 11/07
2007LexusLS460MainAir Door Actuator

* 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:

735188710650370A60518DA1483

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