Keep cabin temperatures steady with the Four Seasons HVAC Blend Door Actuator 73666, a direct-fit Nissan Altima blend door actuator that also installs on the 2013-2018 Nissan Altima, 2016-2017 Nissan Maxima, 2017-2024 Nissan Armada, 2012-2020 Nissan NV3500 and NV3500 /NV3500 HD, 2011-2013 Infiniti QX56, and 2014-2024 Infiniti QX80. This is the right-side unit; it drives the blend door inside the HVAC case that mixes heated and cooled air to hold the temperature you dial in.
Complete internal build: quality internal motor, drive gears, electronics, and connections for consistent door movement.
Includes as applicable: lever arm, gear, cam gear, hardware, and linkage.
Validated: tested for function, durability, and longevity, and built to OE-level fit and function.
If a failed actuator is the cause, you may notice a clicking or knocking behind the dash, air that stays hotter or colder than the setting, or a temperature split between vents — signs this part may need replacing. Backed by Four Seasons and over 50 years of mobile A/C experience; diagnose the cause before replacing.
It's a small electric motor that positions the blend door inside the HVAC case, controlling how much heated and cooled air mixes to reach the temperature you select.
Does this fit a 2015 Nissan Altima?
Yes. This 2015 Nissan Altima blend door actuator covers the 2013-2018 Altima, along with the listed Maxima, Armada, NV3500, QX56, and QX80 applications — see the Buyer's Guide tab to confirm your exact vehicle.
What are the signs this actuator may need replacing?
Common signs include a clicking or knocking noise behind the dash, air that doesn't match the temperature setting, or uneven temperatures between vents. Have the cause diagnosed first.
What's included with part 73666?
It includes the lever arm, gear, cam gear, hardware, and linkage as applicable, along with the internal motor, drive gears, electronics, and connections.
Does this Nissan Armada blend door actuator fit my vehicle?
Yes, it fits the 2017-2024 Nissan Armada, plus several other Nissan and Infiniti models. Check the Buyer's Guide tab to confirm your year and engine.
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WARNING:
These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to
www.P65Warnings.ca.gov.
