HomeHVAC > Temperature Controls and Related ComponentsDorman 604-163 HVAC Blend Door Actuator - Main
Part #: 604-163

Dorman 604-163 HVAC Blend Door Actuator - Main

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⚙️ 5 vehicles fit this part
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Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$54.89Free Shipping
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✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Cadillac, CTS and SRX
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Dorman HVAC Blend Door Actuator 604-163

The Dorman HVAC Blend Door Actuator 604-163 is designed specifically for Cadillac CTS and SRX models. This actuator features a rotary switch activation type and is constructed from durable plastic, ensuring reliable operation within your vehicle's HVAC system.

  • Rotary switch activation for precise blend door control
  • Durable plastic construction for long-lasting performance
  • Compatible with Cadillac CTS and SRX HVAC systems
  • Includes one actuator per package
  • OEM-quality replacement part number 604-163

Detailed Product Description

The Dorman 604-163 HVAC Blend Door Actuator is engineered to regulate the airflow and temperature inside the cabin by controlling the blend door position. Its rotary switch activation type allows for smooth and accurate adjustments, contributing to consistent climate control. Made from high-quality plastic, this actuator withstands the heat and mechanical stress typical in HVAC systems. Designed to fit Cadillac CTS and SRX models, this part ensures compatibility and proper function without modification.

Common Applications and Problem Resolution

This HVAC blend door actuator is used to address issues related to climate control malfunctions in Cadillac CTS and SRX vehicles. It is commonly installed to resolve:

  • Inconsistent cabin temperature due to blend door failure
  • Unresponsive or stuck HVAC controls
  • Unusual noises coming from the HVAC system
  • Airflow stuck in one position or direction
  • Failure to switch between heating and cooling modes

Installation Notes and Tips

  • Ensure vehicle ignition is off before installation
  • Access the blend door actuator behind the dashboard on Cadillac CTS or SRX models
  • Disconnect the electrical connector carefully to avoid damage
  • Remove mounting screws and replace with the Dorman 604-163 actuator
  • Test HVAC system operation before reassembling dashboard components

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards. The 604-163 HVAC Blend Door Actuator undergoes rigorous quality control to ensure reliable performance in Cadillac CTS and SRX vehicles. This part is backed by Dorman's limited warranty, providing coverage against defects in material and workmanship under normal use.

BrandDorman
Part Number604-163
MaterialPlastic
Package ContentsActuator
Switch Activation TypeRotary

This part fits 5 vehicles. Search below:

YearMakeModelPositionNotes
2005CadillacCTSMainTo VIN 50155651; Mode; Packaging Type: Box
2005CadillacSRXMainTo VIN 50155499; Mode; Packaging Type: Box
2004CadillacCTSMainHVAC Blend Door Actuator for mode selection in box packaging.
2004CadillacSRXMainHVAC Blend Door Actuator for mode selection in box packaging.
2003CadillacCTSMainHVAC Blend Door Actuator for mode selection in box packaging.

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

25740394ADS4223APBDA0215

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.