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The Goodman B1368016S is a genuine OEM 10" x 8" blower wheel (squirrel cage) engineered for GDT090-4 gas furnaces. As the heart of the air-handling section, this precision-balanced wheel moves conditioned air across the heat exchanger and through your ductwork. A worn, cracked, or unbalanced blower wheel causes reduced airflow, rattling noise, and premature blower-motor failure — replacing it restores rated CFM and quiet operation.
The OEM B1368016S is dimensionally identical to the wheel your furnace shipped with, so blade pitch, bore, and set-screw location match exactly — no airflow tuning required. Aftermarket generics may fit but often differ in balance and blade count, which can increase noise and shorten motor life. For a furnace this size, the OEM wheel is the safe choice.
Moderate — requires pulling the blower assembly, loosening the hub set screw, and aligning the wheel to the correct depth on the motor shaft. Plan 45–60 minutes. Always shut off power at the disconnect before servicing.