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Dorman 604-113 HVAC Blend Door Actuator - Main
| Brand | Dorman 604-113 |
|---|---|
| Position | Main |
| Material | Plastic |
| Package Contents | Actuator |
| Switch Activation Type | Rotary |
| Fits | Cadillac, Chevrolet, and GMC · 52 vehicles |
OE-style replacement. Precision-engineered to match original performance.
Rotary design. Provides smooth control of the blend door.
Plastic construction. Lightweight actuator built for HVAC use.
Cross-references Autotecnica GM0613055, Four Seasons 73003 and SKP SK604113 for the same application. See all 8.
HVAC Blend Door Actuator for GM Trucks and SUVs
Dorman 604-113 is an HVAC blend door actuator built for specific 1999-2002 GM trucks and SUVs. It uses a rotary switch activation type and a plastic housing to match the original actuator’s function in the HVAC system.
Compatible With Chevrolet Silverado, Tahoe, Suburban, Avalanche, and GMC Sierra, Yukon applications listed below, this Dorman 604-113 replacement is engineered to restore blend door movement for mode selection in the HVAC box.
Key Features
- Rotary actuator design for HVAC blend door control
- Plastic construction
- Direct replacement style for specific GM applications
- Matches original actuator function on listed vehicles
- Package contents: actuator
Detailed Description
This HVAC heater blend door actuator is precision-engineered to match the quality and performance of the original blend door actuator on specific vehicle years, makes, and models. It is used in the HVAC system to move the blend door for mode selection, helping direct airflow through the proper vents. Dorman 604-113 is a practical replacement for GM trucks and SUVs that need accurate HVAC door control, including Chevrolet Silverado, Tahoe, and GMC Sierra applications.
This part cross-references Four Seasons 73003 for the same application.
What It Helps Fix
- HVAC air not switching correctly between vent, floor, and defrost modes
- Stuck or inconsistent blend door movement
- Loss of proper airflow direction in the cabin
- Actuator noise from a worn internal motor or gear set
- Temperature or mode control issues tied to the HVAC box
Installation Notes and Tips
Verify the vehicle’s HVAC system and actuator location before installation. Access is typically through the HVAC housing, and the replacement should be matched to the listed application and position. Confirm connector style, mounting points, and calibration requirements for the vehicle before final assembly.
Quality Assurance
Dorman designs this blend door actuator to match original equipment function on the listed applications. Part number 604-113 is built for specific GM fitments and is supported by Dorman’s OE-style replacement approach.
Compatible Vehicles
- Fits 2002 Cadillac Escalade, Main
- Fits 2002 Cadillac Escalade EXT, Main
- Fits 2002 Chevrolet Avalanche 1500, Main
- Fits 2002 Chevrolet Avalanche 2500, Main
- Fits 1999-2002 Chevrolet Silverado 1500, Main
- Fits 2001-2002 Chevrolet Silverado 1500 HD, Main
- Fits 1999-2002 Chevrolet Silverado 2500, Main
- Fits 2001-2002 Chevrolet Silverado 2500 HD, Main
- Fits 2001-2002 Chevrolet Silverado 3500, Main
- Fits 2000-2002 Chevrolet Suburban 1500, Main
- Fits 2000-2002 Chevrolet Suburban 2500, Main
- Fits 2000-2002 Chevrolet Tahoe, Main
- Fits 1999-2002 GMC Sierra 1500, Main
- Fits 2001-2002 GMC Sierra 1500 HD, Main
- Fits 1999-2002 GMC Sierra 2500, Main
- Fits 2001-2002 GMC Sierra 2500 HD, Main
- Fits 2001-2002 GMC Sierra 3500, Main
- Fits 2000-2002 GMC Yukon, Main
- Fits 2000-2002 GMC Yukon XL 1500, Main
- Fits 2000-2002 GMC Yukon XL 2500, Main
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2002 | Cadillac | Escalade | — | — | Main | HVAC Blend Door Actuator for mode selection in box packaging. |
| 2002 | Cadillac | Escalade EXT | — | — | Main | HVAC Blend Door Actuator for mode selection in box packaging. |
| 2002 | Chevrolet | Avalanche 1500 | — | — | Main | HVAC Blend Door Actuator for mode selection in box packaging. |
| 2002 | Chevrolet | Avalanche 2500 | — | — | Main | HVAC Blend Door Actuator for mode selection in box packaging. |
| 2002 | Chevrolet | Silverado 1500 | — | — | Main | HVAC Blend Door Actuator for mode selection in box packaging. |
| 2002 | Chevrolet | Silverado 1500 HD | — | — | Main | HVAC Blend Door Actuator for mode selection in box packaging. |
| 2002 | Chevrolet | Silverado 2500 | — | — | Main | HVAC Blend Door Actuator for mode selection in box packaging. |
| 2002 | Chevrolet | Silverado 2500 HD | — | — | Main | HVAC Blend Door Actuator for mode selection in box packaging. |
| 2002 | Chevrolet | Silverado 3500 | — | — | Main | HVAC Blend Door Actuator for mode selection in box packaging. |
| 2002 | Chevrolet | Suburban 1500 | — | — | Main | HVAC Blend Door Actuator for mode selection in box packaging. |
| 2002 | Chevrolet | Suburban 2500 | — | — | Main | HVAC Blend Door Actuator for mode selection in box packaging. |
| 2002 | Chevrolet | Tahoe | — | — | Main | HVAC Blend Door Actuator for mode selection in box packaging. |
| 2002 | GMC | Sierra 1500 | — | — | Main | HVAC Blend Door Actuator for mode selection in box packaging. |
| 2002 | GMC | Sierra 1500 HD | — | — | Main | HVAC Blend Door Actuator for mode selection in box packaging. |
| 2002 | GMC | Sierra 2500 | — | — | Main | HVAC Blend Door Actuator for mode selection in box packaging. |
| 2002 | GMC | Sierra 2500 HD | — | — | Main | HVAC Blend Door Actuator for mode selection in box packaging. |
| 2002 | GMC | Sierra 3500 | — | — | Main | HVAC Blend Door Actuator for mode selection in box packaging. |
| 2002 | GMC | Yukon | — | — | Main | HVAC Blend Door Actuator for mode selection in box packaging. |
| 2002 | GMC | Yukon XL 1500 | — | — | Main | HVAC Blend Door Actuator for mode selection in box packaging. |
| 2002 | GMC | Yukon XL 2500 | — | — | Main | HVAC Blend Door Actuator for mode selection in box packaging. |
| 2001 | Chevrolet | Silverado 1500 | — | — | Main | HVAC Blend Door Actuator for mode selection in box packaging. |
| 2001 | Chevrolet | Silverado 1500 HD | — | — | Main | HVAC Blend Door Actuator for mode selection in box packaging. |
| 2001 | Chevrolet | Silverado 2500 | — | — | Main | HVAC Blend Door Actuator for mode selection in box packaging. |
| 2001 | Chevrolet | Silverado 2500 HD | — | — | Main | HVAC Blend Door Actuator for mode selection in box packaging. |
| 2001 | Chevrolet | Silverado 3500 | — | — | Main | HVAC Blend Door Actuator for mode selection in box packaging. |
| 2001 | Chevrolet | Suburban 1500 | — | — | Main | HVAC Blend Door Actuator for mode selection in box packaging. |
| 2001 | Chevrolet | Suburban 2500 | — | — | Main | HVAC Blend Door Actuator for mode selection in box packaging. |
| 2001 | Chevrolet | Tahoe | — | — | Main | HVAC Blend Door Actuator for mode selection in box packaging. |
| 2001 | GMC | Sierra 1500 | — | — | Main | HVAC Blend Door Actuator for mode selection in box packaging. |
| 2001 | GMC | Sierra 1500 HD | — | — | Main | HVAC Blend Door Actuator for mode selection in box packaging. |
| 2001 | GMC | Sierra 2500 | — | — | Main | HVAC Blend Door Actuator for mode selection in box packaging. |
| 2001 | GMC | Sierra 2500 HD | — | — | Main | HVAC Blend Door Actuator for mode selection in box packaging. |
| 2001 | GMC | Sierra 3500 | — | — | Main | HVAC Blend Door Actuator for mode selection in box packaging. |
| 2001 | GMC | Yukon | — | — | Main | HVAC Blend Door Actuator for mode selection in box packaging. |
| 2001 | GMC | Yukon XL 1500 | — | — | Main | HVAC Blend Door Actuator for mode selection in box packaging. |
| 2001 | GMC | Yukon XL 2500 | — | — | Main | HVAC Blend Door Actuator for mode selection in box packaging. |
| 2000 | Chevrolet | Silverado 1500 | — | — | Main | HVAC Blend Door Actuator for mode selection in box packaging. |
| 2000 | Chevrolet | Silverado 2500 | — | — | Main | HVAC Blend Door Actuator for mode selection in box packaging. |
| 2000 | Chevrolet | Suburban 1500 | 5.3L | V8 | Main | HVAC Blend Door Actuator for mode selection in box packaging. |
| 2000 | Chevrolet | Suburban 2500 | — | — | Main | HVAC Blend Door Actuator for mode selection in box packaging. |
| 2000 | Chevrolet | Tahoe | 5.3L | V8 | Main | HVAC Blend Door Actuator for mode selection in box packaging. |
| 2000 | Chevrolet | Tahoe | 4.8L | V8 | Main | HVAC Blend Door Actuator for mode selection in box packaging. |
| 2000 | GMC | Sierra 1500 | — | — | Main | HVAC Blend Door Actuator for mode selection in box packaging. |
| 2000 | GMC | Sierra 2500 | — | — | Main | HVAC Blend Door Actuator for mode selection in box packaging. |
| 2000 | GMC | Yukon | 5.3L | V8 | Main | HVAC Blend Door Actuator for mode selection in box packaging. |
| 2000 | GMC | Yukon | 4.8L | V8 | Main | HVAC Blend Door Actuator for mode selection in box packaging. |
| 2000 | GMC | Yukon XL 1500 | 5.3L | V8 | Main | HVAC Blend Door Actuator for mode selection in box packaging. |
| 2000 | GMC | Yukon XL 2500 | — | — | Main | HVAC Blend Door Actuator for mode selection in box packaging. |
| 1999 | Chevrolet | Silverado 1500 | — | — | Main | HVAC Blend Door Actuator for mode selection in box packaging. |
| 1999 | Chevrolet | Silverado 2500 | — | — | Main | HVAC Blend Door Actuator for mode selection in box packaging. |
| 1999 | GMC | Sierra 1500 | — | — | Main | HVAC Blend Door Actuator for mode selection in box packaging. |
| 1999 | GMC | Sierra 2500 | — | — | Main | HVAC Blend Door Actuator for mode selection in box packaging. |
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