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The Goodman B1368042S 9 x 6 inch Blower Wheel is a genuine OEM squirrel-cage fan wheel for the ATUF193116AA air handler and compatible Goodman/Amana fan-coil units. The blower wheel is the rotating component that moves conditioned air through the coil and into your ductwork. Cracked blades, accumulated debris, imbalance, or a worn hub cause vibration, rattling, weak airflow, and premature motor wear — a fresh, balanced wheel restores quiet, full-rated performance.
The OEM B1368042S is factory-balanced with the correct blade pitch, bore, and 9x6 dimensions to match the housing and motor exactly, preserving rated CFM and minimizing vibration. Generic wheels can be poorly balanced or slightly off-size, leading to noise and motor strain. For a rotating, balance-sensitive part, OEM is strongly recommended.
Replacement requires powering down, removing the blower assembly, loosening the hub setscrew, sliding the old wheel off the motor shaft, and seating the new wheel at the correct depth with the setscrew on the shaft flat. Plan for 45–75 minutes. Because alignment and balance affect noise and motor life, consider a licensed HVAC technician if you are unsure.