HomeFour Seasons 73603 HVAC Blend Door Actuator
Part #: 73603

Four Seasons 73603 HVAC Blend Door Actuator

⚙️ 3 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Toyota, Prius
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Reliable HVAC Blend Door Actuator for Toyota Prius

The Four Seasons 73603 HVAC blend door actuator is designed specifically for Toyota Prius models, ensuring precise control of your vehicle's climate system. This actuator features a durable arm-type door linkage and a secure mounting system with four mounting ears for stable installation.

  • Arm-style door linkage for accurate HVAC air door movement
  • Four mounting ears for secure and stable fitment
  • Five terminal pins for reliable electrical connection
  • Compatible with Toyota Prius HVAC systems
  • Part number 73603 for exact replacement

Detailed Product Description

The Four Seasons 73603 HVAC blend door actuator is engineered to regulate airflow within the HVAC system of Toyota Prius vehicles. Its arm-style door linkage provides precise movement of the blend door, allowing for accurate temperature control inside the cabin. The actuator mounts securely using four mounting ears, ensuring it remains firmly in place during operation. Equipped with five terminal pins, this actuator guarantees a consistent electrical connection for dependable performance. Designed to meet OEM specifications, this part number 73603 is a direct replacement for the original actuator in compatible Prius models.

Common Applications and Issues Resolved

  • Restores proper airflow direction and temperature control in Toyota Prius HVAC systems
  • Eliminates inconsistent cabin temperature fluctuations
  • Resolves blend door actuator failure symptoms such as clicking noises or unresponsive HVAC controls
  • Fixes issues with air distribution between vents
  • Addresses HVAC system malfunctions related to blend door positioning

Installation Notes and Tips

When installing the Four Seasons 73603 blend door actuator, ensure the actuator is aligned correctly with the blend door linkage arm. Verify that all four mounting ears are securely fastened to prevent movement or vibration. Check the five terminal pins for proper electrical connection to avoid intermittent HVAC operation. It is recommended to consult the Toyota Prius service manual for detailed removal and installation procedures to maintain system integrity.

Quality Assurance and Warranty

Four Seasons manufactures the 73603 HVAC blend door actuator to meet strict quality standards, ensuring reliable operation within Toyota Prius HVAC systems. While specific warranty details are not provided here, Four Seasons products typically come with a limited warranty covering defects in materials and workmanship. Refer to the product packaging or Four Seasons documentation for exact warranty terms.

BrandFour Seasons
Part Number73603
Door LinkageArm
Mounting Ear Qty.4
StyleHvac air door actuator
Terminal Pin Qty.5

This part fits 3 vehicles. Search below:

YearMakeModelPositionNotes
2003ToyotaPriusN/A
2002ToyotaPriusN/A
2001ToyotaPriusN/A

* 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:

736038710647060A60603ACT1927IMBDAH1089DA9019MT18619

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