A-NAFTULY HVAC Mode Door Actuator Replacement for 2015–2020 Cadillac/GMC/Chevy Trucks & SUVs — Direct-Fit, 18-Month Warranty

This A-NAFTULY HVAC blend door actuator replaces the factory mode door actuator (OE 604-705 / 22838102) for select 2014–2022 Chevy, GMC, and Cadillac trucks and SUVs, restoring reliable air-mode control in the vehicle's HVAC system.

If the vents in your Chevy, GMC, or Cadillac are stuck on one position or fail to switch between floor, dash and defrost, a worn mode (blend) door actuator is often the culprit. The A-NAFTULY replacement is engineered to match OEM form, fit, and function so you can swap it in without modifying mounting points or wiring. It’s made from premium materials, tested for consistent performance in varied temperatures, and backed by an 18-month warranty and support guide.

Which vehicles and part numbers does this actuator replace?

This actuator is designed for many Chevy, GMC, and Cadillac model years and is a direct substitute for specific OE numbers. It covers light trucks and large SUVs where the factory mode actuator controls airflow direction.

• Replaces OE numbers: 604-705, 22838102, 15-74349, 1712784.
• Chevrolet coverage includes Silverado 1500/2500/3500 variants, Cheyenne (Mexico), Suburban (2015–2020), Tahoe (2015–2020), and heavy-duty Silverado models through 2022.
• GMC and Cadillac coverage includes Sierra 1500/2500/3500 variants, Yukon/Yukon XL (2015–2020), and Escalade/Escalade ESV (2015–2020).
• Position: main mode (air mode) door actuator — replaces the factory mode actuator directly.

How does installation and setup work?

Installation follows the same mounting and connector layout as the original actuator, so most DIYers with basic tools can install it in under an hour. After installation, the vehicle’s HVAC system should be recalibrated so the new actuator aligns with the HVAC controls and blend doors.

• Direct-fit design for easy bolt-on replacement and plug-and-play electrical connector.
• Typical tools needed: screwdriver set, socket set, and trim removal tools.
• Recalibration is required — follow vehicle-specific HVAC reset procedure or battery disconnect method.

What performance and quality can I expect?

A-NAFTULY actuators are built to replicate the original equipment's durability and movement accuracy. Each unit undergoes vehicle-focused testing to ensure smooth, quiet operation across temperature extremes and repeated cycles of door movement.

• Manufactured from premium materials to resist wear and maintain consistent torque.
• Engineered to match OEM movement range and mounting points for correct airflow routing.
• Backed by an 18-month warranty and customer support guide for installation assistance.

Are there special instructions or common pitfalls to avoid?

Take care to match the replacement actuator with the correct part number and vehicle position before ordering. Improper calibration or skipping recalibration after installation can leave vents misaligned or unresponsive.

• Confirm compatibility with your model year and engine variant before purchase.
• Do not force the actuator during installation — align mounting holes and connectors first.
• Always recalibrate the HVAC system per manufacturer procedure after installation.

Who is this for: Drivers and technicians who own or service Chevy, GMC, or Cadillac full-size trucks and SUVs from the listed model years and need a dependable, direct-fit replacement for a failing mode/blend door actuator. It’s especially suited for vehicle owners who want an OEM-style swap that restores proper vent control without custom wiring or modifications, and for shops that prefer parts with a warranty and clear fitment coverage.