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The Goodman B1376853 Motor Mount Arm is a genuine OEM structural bracket for the Amana/Goodman APH1636H41AA packaged heat pump. This is the fan-motor support leg (mount arm) that ties the condenser fan motor to the top grille/venturi. It is a mechanical mounting component — not a motor — and is used in sets of three to suspend the motor concentrically over the fan opening for balanced, vibration-free operation.
OEM vs. Generic: The factory arm matches the exact bolt-hole pattern, length, and offset needed to center the motor over the venturi. Universal or fabricated brackets often throw the motor off-center, which causes fan-blade rub, vibration, and premature bearing wear. Because this part is inexpensive, using the correct OEM arm is the easy call.
Install difficulty: Easy / DIY-friendly. Replacement requires only basic hand tools — no refrigerant or electrical work beyond disconnecting the motor leads for access. Always shut off power at the disconnect before removing the top grille, and replace worn arms as a matched set to keep the motor properly aligned.