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The OEM Goodman B1376857 Motor Mount Arm is a genuine factory bracket that supports the condenser fan motor assembly in the Goodman APH1536M41AC packaged heat pump. This structural arm holds the fan motor in correct alignment over the condenser coil, ensuring proper blade-to-shroud clearance and vibration-free operation. A bent, corroded, or missing mount arm leads to fan wobble, blade strikes, and premature motor bearing wear.
The OEM arm matches the exact bolt pattern, length, and offset of the factory motor mount, so the fan blade seats at the correct depth in the shroud. Generic or fabricated brackets often shift blade position, causing airflow loss or contact noise. Because this part is inexpensive, there is little reason not to use the genuine Goodman replacement.
Easy. With power disconnected, remove the fan grille, unbolt the old arm, transfer the motor, and reinstall. Basic hand tools and 20–30 minutes are all most techs or handy owners need — no refrigerant or wiring work involved.