A-Premium HVAC Heater Blend Door Actuator Set of 2 for GM Vehicles — Temperature & Recirculation Control

The A-Premium Set of 2 HVAC heater blend door actuators are direct-replacement actuators that restore temperature control and fresh/recirculation air selection for compatible GM vehicles.

If your vehicle is blowing only hot or cold air, failing to change between recirculation and outside air, or making a clicking noise behind the dash, faulty blend/air-inlet actuators are often the cause. This A-Premium two-piece set replaces worn actuators used as the main, air inlet and temperature control units (not the mode actuator) on a broad range of Buick, Cadillac, Pontiac and Chevrolet models. Each unit meets OE-style fitment references so you can refit the HVAC system quickly and reliably.

Which cars will these A-Premium actuators fit?

These actuators are designed as direct-fit replacements for many General Motors vehicles from the mid-2000s through the mid-2010s. Check the reference numbers and model years to confirm compatibility with your vehicle before ordering.

• Buick: Allure (2005–2009), LaCrosse (2005–2009)
• Cadillac: XLR (2004–2009)
• Pontiac: Grand Prix (2004–2008)
• Chevrolet: Corvette (2005–2013), Impala (2004–2013), Impala Limited (2014–2016), Malibu (2004–2008), Monte Carlo (2004–2007)

What exactly do these actuators control and what won’t they replace?

Each actuator in this set controls the blend of hot and cold air and the inlet selection for fresh versus recirculated air. They are intended to replace main, air inlet and temperature actuators only and are not compatible with mode actuators that direct airflow to specific vents.

• Controls temperature blend for accurate cabin comfort.
• Operates the recirculation and outside air door.
• Not suitable as a replacement for vent-mode actuator functions.

How do I verify the correct part before installation?

Confirm fit by comparing the actuator’s reference numbers and physical connector with the part in your vehicle. Use the listed OE and cross-reference numbers to match with factory or aftermarket documentation for a guaranteed fit.

• Compare reference numbers: 604-108, 604108, 10325404, 10356910, 15142056, 15249473, 1573517, 15844096, 22754988, 52409974, 15-73517.
• Visually check connector type and mounting hole pattern against the existing actuator.
• Confirm your vehicle make, model and production year are listed in the fitment range.

What are the practical benefits of replacing failed actuators with this A-Premium set?

Installing this replacement set restores precise temperature regulation and proper fresh/recirculation selection, reducing fogging and improving passenger comfort. Because this is a two-piece package, you can replace both failing units at once, avoiding repeat labor and ensuring balanced operation across the HVAC system.

• Restores HVAC responsiveness and consistent cabin temperature.
• Eliminates clicking noises associated with worn actuators.
• Two-piece set lowers the chance of premature imbalance between doors.

Who is this for: This A-Premium Set of 2 HVAC heater blend door actuators is aimed at DIY mechanics, independent shops and fleet technicians working on compatible Buick, Cadillac, Pontiac and Chevrolet models from 2004–2016 who need an OE-style, economical replacement for failing temperature and air-inlet actuators. If your vehicle’s HVAC is stuck on one temperature, won’t switch between fresh and recirc air, or exhibits repeated actuator noise, this pair offers a cost-effective route to restore proper climate control function.