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The B1376857 is a genuine OEM motor mount arm engineered for the Goodman APH1430M41AC package heat pump. This bracket secures the fan/motor assembly to the unit frame, holding it in precise alignment so the blower or condenser fan spins true, quietly, and without vibration. A worn, cracked, or bent mount arm is a common cause of rattling, wobble, and premature motor bearing failure — replacing it restores stable operation.
This is the factory OEM component, guaranteeing exact bolt-hole spacing, gauge, and mounting geometry. Generic universal arms often require drilling or bending to fit and can throw off motor alignment, leading to noise and vibration. For a precise, drop-in replacement on your APH1430M41AC, the genuine Goodman arm is the correct choice.
Replacing the mount arm requires disconnecting power at the breaker, removing the fan/motor assembly, transferring it to the new arm, and re-securing. No refrigerant work is involved. Most handy DIYers can complete this with basic hand tools, though a technician is recommended if you are uncomfortable handling the motor assembly. Always confirm power is off before servicing.