Bring your climate controls back to life with the Dorman - OE Solutions HVAC Blend Door Actuator 604-341, the LEFT MAIN air door actuator that positions the blend door to direct airflow and temperature inside the HVAC case. It's engineered to drop in like the original on the 2003-2009 Lexus GX470 and 2003-2009 Toyota 4Runner (see the Buyer's Guide tab for engine-level details), restoring proper HVAC operation when the original actuator has failed.
- Direct replacement: engineered to install and operate like the factory air door actuator on the listed years, makes, models and configurations.
- Position specific: this is the LEFT MAIN actuator — vehicles often use several HVAC door actuators, so review the application notes to confirm it matches the location and function of 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, with more than a century of experience.
If a failed blend door actuator is the cause of inconsistent air temperature, weak mode changes, or a clicking sound behind the dash, this replaces it.
Interchange: DA1236 · ADA664 · ADR4474 · 8710635130 · 8710635170
This part cross-references / interchanges with the following part numbers:
Frequently Asked Questions
What does this blend door actuator do?
It's a small electric motor that moves the HVAC blend door, positioning it to control airflow direction and temperature inside the heating and cooling case.
Which position is this actuator?
This is the LEFT MAIN actuator. Many vehicles use several HVAC door actuators, so check the application notes to confirm it matches the location and function of the one you're replacing.
What vehicles does part 604-341 fit?
It's a direct-fit replacement for the 2003-2009 Lexus GX470 and 2003-2009 Toyota 4Runner. See the Buyer's Guide tab for the full application details.
What are signs this actuator may need replacing?
Common signs include inconsistent or wrong air temperature, air that won't change temperature, weak or stuck mode changes, and a clicking or knocking sound behind the dash.
What numbers does this part interchange with?
It cross-references DA1236, ADA664, ADR4474, 8710635130, and 8710635170.
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