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The Goodman B1376857 Motor Mount Arm is a genuine OEM condenser fan motor support bracket built for the APH1448M41AB heat pump. This stamped-steel arm holds the condenser fan motor at the correct height and angle, keeping the fan blade centered in the shroud so the unit runs quietly and moves air efficiently. Swapping out a corroded, bent, or vibration-fatigued arm restores balanced, rattle-free fan operation.
OEM vs. Generic: The genuine Goodman B1376857 reproduces the factory bolt pattern and arm length exactly, so the fan motor bolts in at the right height with no shimming or re-drilling. Universal brackets frequently need modification and can misalign the blade, causing noise or blade strikes. OEM gives you a clean, drop-in repair.
Install difficulty: Easy (1 of 5). A straightforward bracket replacement with common hand tools. Disconnect power at the outdoor disconnect first, and mark the fan blade's position on the motor shaft so you can restore identical clearance when reassembling.