My 2019 CX-9 GT recently started blowing warm air only out of the right rear vent for the rear passengers. The left vent blows cold air. I suspect it's the blend door actuator malfunctioning, however if I buy it new, the part is between 300 and 400 dollars, plus labor. I've found it used for about 50 bucks and was wondering if this is the right part (or is it for the front dash) and what would it involve to replace it myself. Thanks in advancr. I posted a picture of the part, if anyone knows this is it?

2019 MAZDA CX-9 HEATER HVAC BLEND DOOR ACTUATOR MOTOR | eBay
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