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The genuine OEM Goodman B1376853 motor mount arm secures the blower motor inside the Goodman/Amana ASPF313716CA air handler. This support leg ties the motor belly-band to the blower housing, holding the motor concentric in the wheel and damping vibration. A bent, rusted, or fatigued mount arm causes wheel rub, excessive noise, and premature bearing wear — making this an inexpensive but important part to replace as a set with its companion legs.
The OEM Goodman arm matches the factory bolt pattern, arm length, and offset so the motor sits perfectly centered with no shimming. Generic or fabricated mounts often need elongated holes or washers to align, and any misalignment transfers vibration into the blower housing. For quiet, balanced operation, OEM is the safe choice.
Moderate (2 of 5). Pull the blower assembly, transfer the motor to the new arm, and reinstall, keeping the wheel centered in the housing. Plan 30–45 minutes. De-energize the unit and support the motor before removing the old arm.