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The genuine Goodman B1376853 Motor Mount Arm is a factory replacement bracket for the WAHME3137P4AEA air handler. This mount arm secures the blower motor in the housing and holds it in correct alignment, ensuring smooth, vibration-free operation and proper airflow across the coil.
The OEM B1376853 is stamped to Goodman's exact mounting geometry, so the motor sits at the correct depth and angle with no shimming or drilling. Generic brackets can throw off motor alignment, causing wheel rub, excess vibration, and premature bearing wear. The OEM arm bolts in to factory spec.
Moderate (3/5) — Requires removing the blower assembly to access the mount. De-energize the unit, support the motor, swap the mount arm, and torque the fasteners evenly. Basic hand tools and care to maintain motor alignment are needed.
A worn or bent mount arm is a common source of blower noise and vibration; replacing it restores quiet, balanced operation.