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Dorman 604-199 HVAC Blend Door Actuator - Auxiliary
| Brand | Dorman 604-199 |
|---|---|
| Position | Auxiliary |
| Material | Plastic |
| Package Contents | Actuator |
| Switch Activation Type | Rotary |
| Fits | Chevrolet, Pontiac, and Oldsmobile · 9 vehicles |
OE direct replacement. Precision-engineered to match original quality and performance.
Rotary activation. Smoothly controls the blend door actuator function.
Plastic construction. Lightweight design for dependable HVAC operation.
Cross-references Four Seasons 73097, Standard Ignition ADR133 and 10306566 for the same application. See all 6.
HVAC Blend Door Actuator for Auxiliary Temperature Control
Dorman 604-199 is an HVAC blend door actuator built for specific Pontiac Montana and Oldsmobile Silhouette applications with auxiliary temperature control. It uses a rotary switch activation type and a plastic housing to match the original actuator’s function and fit on the listed vehicles.
Key Features
- Precision-engineered replacement for the original HVAC blend door actuator
- Rotary switch activation type for auxiliary temperature control operation
- Plastic construction for application-specific fitment
- Direct replacement for select Pontiac Montana and Oldsmobile Silhouette models
- Part number 604-199 for easy identification
Detailed Description
This Dorman HVAC blend door actuator is made to match the quality and performance of the original unit on specific vehicle years, makes, and models. It is used in the auxiliary temperature system and is listed for 2001-2005 Pontiac Montana, Auxiliary, and 2001-2004 Oldsmobile Silhouette, Auxiliary, both with lower duct configurations. If you are replacing a failed HVAC actuator on a Pontiac Montana or Oldsmobile Silhouette, 604-199 provides the correct application-specific solution.
This part cross-references Four Seasons 73097 for the same application.
Common Problems It Can Help Solve
- Inconsistent temperature control from the auxiliary HVAC system
- Airflow stuck on one temperature setting
- Clicking or binding from the HVAC blend door area
- Loss of proper blend door movement in the lower duct system
- HVAC output that no longer responds to control changes
Installation Notes and Tips
Verify the vehicle year, make, model, and auxiliary position before installation. This actuator is listed for 2001-2005 Pontiac Montana, Auxiliary, and 2001-2004 Oldsmobile Silhouette, Auxiliary, with lower duct configurations. Confirm the original part number and connector style against the removed unit to ensure proper replacement. Part number 604-199 should be matched to the vehicle’s HVAC layout before installation.
Quality Assurance
Dorman manufactures this actuator as an OE-style replacement for the specified applications, with engineering focused on matching original performance and fit. The part number 604-199 is supported by interchange references including Standard Ignition ADR133 and other listed cross-references for the same application.
| Year | Make | Model | Submodel | Position | Notes |
|---|---|---|---|---|---|
| 2005 | Pontiac | Montana | Base | Auxiliary | Temperature; w/Lower Duct; Packaging Type: Box |
| 2004 | Oldsmobile | Silhouette | — | Auxiliary | Temperature; w/Lower Duct; Packaging Type: Box |
| 2004 | Pontiac | Montana | — | Auxiliary | Temperature; w/Lower Duct; Packaging Type: Box |
| 2003 | Oldsmobile | Silhouette | — | Auxiliary | Temperature; w/Lower Duct; Packaging Type: Box |
| 2003 | Pontiac | Montana | — | Auxiliary | Temperature; w/Lower Duct; Packaging Type: Box |
| 2002 | Oldsmobile | Silhouette | — | Auxiliary | Temperature; w/Lower Duct; Packaging Type: Box |
| 2002 | Pontiac | Montana | — | Auxiliary | Temperature; w/Lower Duct; Packaging Type: Box |
| 2001 | Oldsmobile | Silhouette | — | Auxiliary | Temperature; w/Lower Duct; Packaging Type: Box |
| 2001 | Pontiac | Montana | — | Auxiliary | Temperature; w/Lower Duct; Packaging Type: Box |
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