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The Goodman B1376853 Motor Mount Arm is a genuine OEM replacement for the ADPF48601BA air handler. The mount arm is the rigid bracket that supports the blower motor cradle, transferring load to the blower housing while keeping the motor centered in the wheel.
An OEM Goodman arm matches the original hole spacing and gauge, so the motor sits at the correct depth in the blower wheel. Generic substitutes can misalign the wheel, causing rubbing and noise. The arm is commonly serviced alongside the mount band (B1376851) as a matched set.
Easy (2/5). Basic hand tools and about 30 minutes. Cut power at the breaker before opening the blower compartment, and note motor orientation before removal.