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The Goodman B1376857 Motor Mount Arm is a genuine OEM bracket that supports the condenser fan motor inside the APH1548M41AA packaged heat pump. The mount arm holds the motor rigidly in the airflow path, keeping the fan blade centered in the orifice and free of vibration. A cracked, bent, or corroded mount arm causes fan-blade wobble, bearing wear, and rattling noise — replacing it restores quiet, aligned operation for a few dollars.
The OEM B1376857 matches the exact hole pattern and offset needed to seat the motor at the correct depth in the fan orifice. Universal brackets rarely align the blade correctly, risking blade-to-shroud contact. At this price point, OEM is the obvious choice for a guaranteed fit.
Easy–Moderate (2/5). With power disconnected, unbolt the fan motor from the old arm, transfer it to the new mount, and reinstall — no refrigerant or wiring changes required. A basic socket set is all that's needed, and the job typically takes 20–30 minutes.