Four Seasons 73743 HVAC Recirculation Door Actuator - Left or Left Main

HVAC Recirculation Door Actuator Overview

The Four Seasons 73743 HVAC recirculation door actuator is built for vehicles that need precise control of the air door inside the climate system. It uses a cam-style door linkage and a 5-pin terminal layout to match the original actuator design on many Lexus and Toyota applications.

Compatible With Lexus ES250, ES300h, ES350, NX250, NX350, NX350h, NX450h+, RX350, RX350h, RX500h, UX250h, RX350L, RX450h, RX450hL, UX200, and Toyota Camry, Corolla, Corolla Cross, Crown, GR Corolla, Grand Highlander, Highlander, Prius, Prius Prime, RAV4, RAV4 Prime, Sienna, Venza, Avalon, C-HR, and Prius AWD-e applications.

• Cam-style linkage for controlled HVAC door movement
• 5-terminal electrical connection for system-specific operation
• Four mounting ears for secure actuator attachment
• Direct replacement format for select Lexus and Toyota climate systems

Detailed Product Information

This HVAC air door actuator helps restore proper recirculation door movement when the original unit no longer responds correctly. The Four Seasons 73743 is referenced for a wide range of Lexus and Toyota models, including 2024 Lexus TX350, 2024 Toyota Grand Highlander, and 2016-2024 Toyota Prius applications, making it a useful match for common climate control repair work. The part number 73743 is also cross-referenced to 871060E130 and 8710658050 for the same application.

Four Seasons draws on more than 50 years of mobile A/C experience, and its products are engineered and tested for dependable operation in HVAC service. If your Lexus RX350 or Toyota Camry has inconsistent recirculation door response, this actuator provides a direct replacement path for restoring normal cabin airflow control.

Common Problems This Part Can Address

• Recirculation door not changing position correctly
• HVAC airflow stuck on fresh air or recirculation
• Clicking or failed actuator movement inside the dash HVAC system
• Temperature or airflow control issues caused by a worn door actuator
• Climate system response problems tied to the air door mechanism

Installation Notes

Verify the connector style, mounting ear layout, and door linkage type before installation. Confirm the vehicle application by year, make, model, and position notes, especially on Lexus and Toyota platforms with multiple HVAC configurations. The part number 73743 should be matched carefully to the original actuator reference before replacement.

Quality Assurance

Four Seasons states that its products are engineered and tested for years of trouble-free operation. Backed by more than 50 years of mobile A/C experience, the brand positions this actuator as a repair-focused replacement for HVAC service.