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The Goodman B1376853 Motor Mount Arm is the genuine OEM bracket that secures the blower motor to the housing belly band inside the WAHMV3137P4AAA air handler. These arms hold the motor concentric to the blower wheel and absorb operating vibration. A bent, rusted, or broken mount arm lets the motor sag, causing wheel rub, noise, and accelerated bearing wear — a quick, inexpensive fix that protects far more costly components.
This factory OEM Goodman arm matches the exact bend angle, slot pattern, and length of the original so the motor sits perfectly centered. Substitute brackets often differ in geometry, forcing the motor off-axis. At this price, OEM is the obvious choice. Most installs use a set of mount arms — order the quantity your unit requires.
Easy to Moderate. Loosen the belly-band hardware, swap the arm, and re-torque while keeping the motor centered. Typically 15–30 minutes with basic hand tools. Always disconnect power before servicing.