Four Seasons 73703 HVAC Blend Door Actuator

Four Seasons 73703 HVAC Blend Door Actuator

Restore proper cabin temperature control with the Four Seasons 73703 HVAC blend door actuator. This HVAC air door actuator is built for vehicles that need precise movement of the blend door to direct heated and cooled air through the climate system.

Compatible with 1999-2003 Acura CL and 1999-2003 Acura TL applications, this part number 73703 is a direct-fit solution for common HVAC door control concerns on these Acura models.

Key Features

• HVAC blend door actuator for air temperature control
• Arm-style door linkage for blend door movement
• 4 mounting ears for secure installation
• 5-terminal pin electrical connection
• Four Seasons part number 73703
• Cross-reference: FEL-PRO 73703

Detailed Description

The Four Seasons 73703 is an HVAC blend door actuator engineered for accurate control of the air door inside the heating and air conditioning system. It uses an arm linkage design and a 5-pin terminal layout to move the blend door based on HVAC commands, helping regulate airflow between hot and cold settings. Four Seasons backs this component with more than 50 years of mobile A/C experience and tests its products for dependable operation over time.

This actuator is a fitment-based replacement for 1999 Acura CL, 2001-2003 Acura CL, and 1999-2003 Acura TL models. If your Acura CL or Acura TL has inconsistent cabin temperature control, this part number 73703 addresses the actuator side of the HVAC blend door system.

What It Helps Fix

• Air stuck on hot or cold
• Temperature changes that do not match the control setting
• HVAC air door movement problems
• Uneven cabin temperature output
• Blend door actuator failure codes or response issues

Installation Notes and Tips

Verify the connector style, mounting ear layout, and linkage type before installation. Confirm the vehicle application against the exact year and model listed for Acura CL and Acura TL. After installation, cycle the HVAC controls to check for smooth blend door movement and proper temperature response.

Quality Assurance

Four Seasons engineers and tests this actuator for long-term, trouble-free operation. The brand’s mobile A/C background supports the design and validation of this HVAC replacement part.