If the air coming out of your Altima, Maxima, Murano, or Quest won't settle on a temperature — running hot when you dial it to cold, or the cabin temp seems stuck no matter what you set — the part behind the dash doing the work is the HVAC blend door actuator, which Nissan calls the Air Mix Actuator. This small motor physically swings the blend door that mixes hot and cold air before it reaches your vents. When it wears out or its internal gears strip, you lose control over cabin temperature, and it's common to hear a faint clicking or grinding sound from behind the dash as the motor struggles to move a door it can no longer turn.
Why Genuine OEM Matters
The blend door actuator has to seat into a factory-specific mounting bracket, mesh precisely with the door's drive gear, and plug into the HVAC control module through a matched electrical connector. Aftermarket actuators are a frequent source of stripped gears, connector mismatches, and units that fail again within months. A genuine Nissan actuator is built to the same spec as the one that came out of your vehicle, so it drops in, connects correctly, and holds up the way the factory intended.
Quick Part Facts
- Condition: New Genuine OEM
- Side: Driver Side
- Position: Front, Air Mix (Temperature Control)
- Engines: 2.5L 4-Cyl (Altima only), 3.5L V6 (Altima, Maxima, Murano, Quest)
- Also Known As: Actuator Assy-Air Mix; Temperature Motor
Fitment
| Year Range | Make | Model | Trim/Engine |
|---|---|---|---|
| 2007–2012 | Nissan | Altima | Base, S, SE, SL, SR | 2.5L 4-Cyl or 3.5L V6 |
| 2004–2014 | Nissan | Maxima | LE, Premium, S, SE, SL, Sport, SR, SV | 3.5L V6 |
| 2003–2014 | Nissan | Murano | LE, S, SE, SL, SV (with/without roof) | 3.5L V6 |
| 2011–2017 | Nissan | Quest | LE, SL, SV | 3.5L V6 |
If your climate control has stopped listening to you, don't keep fighting the temperature dial. Grab the genuine Nissan part built for your exact vehicle here: 03-17 Nissan Altima Maxima Murano Quest Dr Side Air Mix Actuator OEM.