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The Goodman B1376853 Motor Mount Arm is a genuine OEM blower motor support bracket engineered for the Goodman ACVC80603BXCA two-stage, variable-speed 80% AFUE gas furnace. This mount arm secures the blower (ECM/PSC) motor inside the blower housing, holding it in correct alignment with the wheel so the assembly runs true and vibration-free. A bent, cracked, or fatigued mount arm is a common cause of blower rattle, wheel rub, and premature bearing wear.
This is a true OEM Goodman part machined to factory tolerances, so the bolt pattern and arm geometry match your blower housing exactly. Universal or generic brackets often require drilling new holes or shimming the motor, which can leave the wheel off-center. Choosing OEM protects your blower bearings and preserves the furnace's variable-speed airflow calibration.
Difficulty: Moderate. Replacement requires pulling the blower assembly, transferring the motor to the new mount, and re-centering the wheel. Plan on 30–45 minutes with basic hand tools. Always disconnect power at the furnace switch and breaker before servicing. If you are not comfortable removing the blower assembly, we recommend a licensed HVAC technician.