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Air Door Actuator/HVAC Blend Control Actuator 604-112


The Air Door Actuator controls the flow of air in your vehicle's AC system. This part commonly fails on Chevrolet, Chevy, GMC, Cadillac, or Hummer models leading incorrect air flow or temperatures inside your vehicle. The blend door actuator is easy to replace on your Chevy Silverado, Chevy Tahoe, GMC, Cadillac, or Hummer. Sometimes called the air heater blend door, this part is an essential part of your Chevy's air conditioner system.

Fits the following GM models:

2003 - 2013 Chevy Silverado 1500, 2500 HD, 3500 HD

2003 - 2014 Chevy Tahoe

2003 - 2014 Chevy Suburban

2003 - 2013 Chevy Avalanche

2003 - 2013 GMC Sierra 1500, 2500 HD, 3500 HD

2003 - 2014 GMC Yukon & Yukon XL

2003 - 2014 Cadillac Escalade

2003 - 2009 Hummer H2

Replaces Part#

15-73952, 1573952, 52495593, 89018374, 604-112, 604112

Controls Air Flow Mode:

This AC actuator controls the flow of air from the floor, vents, and defrost position. This actuator is sometimes referred to as the "blend door actuator" and is located on under the dashboard, on the driver side.

This is not a genuine GM part, the terms Chevrolet, Chevy, GMC, Cadillac, Hummer and their associated models is used only to identify which vehicles this part fits.