Dorman 604-113 HVAC Blend Door Actuator Direct Replacement for Cadillac Chevrolet GMC

Overview

The Dorman 604-113 HVAC Blend Door Actuator is a direct replacement engineered to restore accurate air distribution in select Cadillac, Chevrolet, and GMC models. It mirrors the fit and function of the original actuator for a seamless return of climate control without guesswork.

In many vehicles the HVAC system uses more than one actuator. This part is position specific, so reviewing the application notes is essential to verify that it matches the location and function you need to replace. If you are unsure about the actuator position, consult a qualified technician.

Key benefits at a glance

• Direct replacement for a familiar mounting and operation in compatible years and configurations
• Position specific design helps ensure the right actuator is used for the correct HVAC door location
• Durable construction aimed at resisting wear and electrical burnout for steady operation
• Quality you can trust backed by a U.S. based team of experts with extensive experience
• Fit verification by entering your make, model and trim level into the garage tool
• Amazon Confirmed Fit notes provide additional information when indicated by the blue bar

Real world usage and outcomes

For many drivers, a faulty blend door actuator manifests as inconsistent temperature, uneven airflow, or vents that fail to respond to changes in climate settings. A proper replacement can help restore predictable behavior in both hot and cool conditions, supporting smoother transitions between vent modes and zones.

• Responsive temperature control across cabin zones
• Stable airflow in front and rear HVAC paths as intended by the design
• Reliable performance across typical driving conditions and climate changes

Compatibility and installation guidance

The part fits a broad range of models from the early 2000s including Cadillac Escalade and Escalade EXT, Chevrolet Silverado and Suburban lines, and GMC Sierra and Yukon variants. Before purchasing, input your vehicle specifications to confirm exact fitment.

To verify fit, review the application notes and use the Amazon Confirmed Fit bar if available. If notes indicate additional considerations, hover or click for details. If you are unsure about the position or function, a professional technician can help confirm compatibility and assist with installation.

Remember to double check vehicle information in the Amazon Garage before you buy to ensure alignment with your year, make and trim.