Take command of your cabin airflow with the Dorman - OE Solutions HVAC Blend Door Actuator 604-106 — a small electric motor that drives the HVAC blend door to control how heated and cooled air is mixed and routed through the system. It installs as a direct-fit replacement across a wide range of GM cars, SUVs and trucks, including the 1994-1996 Buick Roadmaster, 1997-2005 Buick Century, 1998-2002 Chevrolet Blazer, 1999-2013 Chevrolet Silverado 1500, 2000-2014 Chevrolet Tahoe, 2002-2014 Cadillac Escalade and 2003-2009 Hummer H2 — see the Buyer's Guide tab for the full list of 65 applications.
- Blend-door control: positions the HVAC blend door to regulate the mix of warm and cool air reaching the vents.
- Application coverage: cataloged for main and auxiliary blend-door locations (including right, left, upper and lower main), depending on the vehicle.
- Direct-fit design: engineered to drop in like the original actuator on the listed applications.
- Signs it may need replacing: clicking or knocking behind the dash, temperature that won't change, or air coming from the wrong vents. If a failed actuator is the cause, this replaces it — diagnose the fault first.
Interchange: APBDA0224 · 15-72971 · 1572971 · ADS111 · F04013 · ADA111 · 37537 · 16163982 · 52402588 · 52402598 · 52402612 · 89018365 · DA1046 · SK604106 · ADR111 · GM0613018
Manufacturer part number 604-106.
This part cross-references / interchanges with the following part numbers:
Frequently Asked Questions
What does the Dorman 604-106 do?
It's an electric HVAC blend door actuator that drives the blend door in the heating and cooling case to control how warm and cool air is mixed and routed to the vents.
Will this actuator fit my vehicle?
It's a direct-fit replacement for 65 GM applications, from the 1994-1996 Buick Roadmaster to 2000-2014 Chevrolet Tahoe. Check the Buyer's Guide tab to confirm your exact year, make and model.
What are signs of a failing blend door actuator?
Clicking or knocking behind the dash, temperature that won't change, or air blowing from the wrong vents can be signs the actuator may need replacing. Diagnose the cause first, as other parts can produce similar symptoms.
What blend-door position does it cover?
It is cataloged for main and auxiliary locations, including right main, left main, upper main and lower main, depending on the application. Verify the correct position for your vehicle in the Buyer's Guide.
What numbers does the 604-106 replace?
It interchanges with APBDA0224, 15-72971, ADS111, F04013, ADA111, 37537, 16163982, 52402588, 52402598, 52402612, 89018365, DA1046, SK604106, ADR111 and GM0613018.
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