Four Seasons 73032 HVAC Blend Door Actuator

HVAC Air Door Actuator for ATC Systems

The Four Seasons 73032 HVAC blend door actuator is built for vehicles with Automatic Temperature Control (ATC) that need precise air door movement inside the climate control system. This air door actuator helps regulate airflow direction and temperature blend for consistent cabin comfort in supported Buick, Oldsmobile, Pontiac, and Cadillac applications.

Key Features

• Four Seasons Air Door Actuator, part number 73032
• HVAC blend door actuator style for automatic climate control systems
• Arm-style door linkage for controlled air door movement
• 3 mounting ears for secure installation
• 5-terminal pin connector configuration
• Direct-fit coverage for select GM vehicles with ATC

Product Details

Four Seasons 73032 is an HVAC air door actuator used in blend door control systems to position internal doors that manage heated and cooled air. The arm linkage and 5-pin electrical interface support the actuator function required in automatic temperature control setups. This part number 73032 is listed for select 1992-1999 Buick LeSabre, 1992-1996 Buick Park Avenue, 1992-1999 Oldsmobile 88, 1996-1999 Oldsmobile LSS, 1997-1998 Oldsmobile Regency, 1992-1999 Pontiac Bonneville, 1992-1996 Oldsmobile 98, 1992-1993 Cadillac DeVille, 1992-1993 Cadillac Fleetwood, and 1992 Cadillac Commercial Chassis applications.

This part cross-references Autotecnica BU0613083 and Global Parts Distributors LLC 1712079 for the same application.

What It Helps Fix

• Temperature stuck hot or cold
• Airflow not changing between vents, floor, or defrost
• Clicking or ticking from the dash HVAC area
• Inconsistent cabin temperature control on ATC systems
• Blend door movement errors caused by a worn actuator

Installation Notes

Verify the vehicle uses Automatic Temperature Control (ATC) and confirm connector style, mounting ear layout, and linkage style before installation. Access is typically through the HVAC case area, so inspect the blend door and related components for binding or damage while replacing the actuator. After installation, cycle the ignition and HVAC controls to allow the system to relearn or recalibrate if required by the vehicle.

Quality Assurance

Four Seasons is a recognized aftermarket brand in HVAC service parts, and this actuator is cataloged for direct application matching on supported GM platforms. Use the listed fitment and connector details to confirm the correct replacement before ordering.