Restore smooth temperature and airflow control with the Dorman - OE Solutions HVAC Blend Door Actuator 604-314, a direct-fit replacement for the 2003-2009 Lexus GX470, 2003-2009 Toyota 4Runner, and 2007-2014 Toyota FJ Cruiser (see the Buyer's Guide tab for full application notes). This is the MAIN position actuator — the small electric motor that drives the HVAC blend door to regulate the mix of hot and cold air reaching the cabin.
- Direct replacement: engineered to drop in like the original air door actuator on the listed years, makes, models, and configurations to restore proper HVAC operation.
- Position specific: many vehicles use several different HVAC door actuators for specific locations and functions — review the application notes to confirm this MAIN-position unit matches the one you need to replace.
- Durable construction: designed and tested to strict standards to help resist wear and electrical burnout for reliable operation.
- Trustworthy quality: backed by a team of experts and engineers in the United States and more than a century of experience.
Signs the actuator may need replacing include clicking or knocking behind the dash, air that stays stuck on one temperature, or blend doors that no longer respond to control changes.
Interchange: DA1219 · ADA665 · ADR4475 · 8710635120
This part cross-references / interchanges with the following part numbers:
Frequently Asked Questions
What does this blend door actuator do?
It is the small electric motor that moves the HVAC blend door, controlling the mix of hot and cold air sent to the cabin. This is the MAIN-position unit.
Which vehicles does the Dorman 604-314 fit?
It is a direct-fit replacement for the 2003-2009 Lexus GX470, 2003-2009 Toyota 4Runner, and 2007-2014 Toyota FJ Cruiser. Check the Buyer's Guide tab and application notes.
How do I know I need this actuator?
Common signs include clicking or knocking behind the dash, air stuck on one temperature, or the blend door not responding. Confirm the actuator is the cause before replacing.
My vehicle has more than one actuator — is this the right one?
This is the MAIN-position actuator. Vehicles often use several HVAC door actuators, so review this part's application notes to verify it matches the position and function you need.
What other part numbers does this replace?
It interchanges with DA1219, ADA665, ADR4475, and 8710635120.
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