Keep your heater and A/C blending air correctly with the Dorman - OE Solutions HVAC Blend Door Actuator (P/N 604-018). This electric actuator drives the blend door that regulates air across the heater and A/C system, and it's a direct-fit replacement for the 1999-2001 Dodge Ramcharger, 1999-2001 Dodge Ram 1500, 1999-2002 Dodge Ram 2500, and 1999-2002 Dodge Ram 3500. This unit serves the MAIN blend-door position.
- Direct replacement: engineered to drop in like the original air door actuator on the listed years, makes, models, and configurations.
- Position specific: many vehicles use several HVAC door actuators for different locations and functions — review this part's application notes to confirm it matches the MAIN actuator you need to replace.
- Durable construction: designed and tested to strict standards to help resist wear and electrical burnout for reliable operation and long service life.
- Trustworthy quality: backed by a team of experts and engineers in the United States and more than a century of experience.
If a failed blend door actuator is the cause of inconsistent temperature or a door that won't move, this part replaces it. Confirm the position and function against your vehicle before ordering.
Interchange: 5012924AA · 5104879AA · DA1016 · ADA641
This part cross-references / interchanges with the following part numbers:
Frequently Asked Questions
What does this blend door actuator do?
It's an electric motor that moves the blend door, regulating how air flows across the heater and A/C to control cabin temperature and, on some systems, airflow direction.
Which vehicles does part 604-018 fit?
It's a direct-fit replacement for the 1999-2001 Dodge Ramcharger, 1999-2001 Dodge Ram 1500, and 1999-2002 Dodge Ram 2500 and Ram 3500. See the Buyer's Guide tab to confirm.
Which actuator position is this?
This unit serves the MAIN blend-door position. Since many vehicles use several actuators for different locations and functions, review the application notes to confirm it matches the one you're replacing.
What are signs my blend door actuator may need replacing?
Common signs include inconsistent or stuck cabin temperature, a door that won't move, or clicking/knocking behind the dash. Diagnose the cause before replacing, as other parts can be involved.
What interchange numbers does this replace?
It cross-references 5012924AA, 5104879AA, DA1016, and ADA641. Matching an interchange number helps confirm you're ordering the correct actuator.
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