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The B1376853 is a genuine OEM motor mount arm for the Goodman/Amana ADV81155CXBB gas furnace and compatible models. These support arms (legs) bridge the blower housing to the motor belly band, holding the motor rigidly centered within the housing. Worn, bent, or corroded arms let the motor sag or vibrate, producing rattles, wheel contact, and accelerated bearing failure. Replacing them restores quiet, stable blower operation.
The OEM B1376853 has the exact hole spacing and bend geometry to align the motor without shimming. Generic arms frequently require drilling or bending to fit and can leave the motor off-center. OEM delivers a true factory-correct, drop-in replacement.
Moderate (~30–45 minutes). Involves removing the blower assembly and unbolting the arms from the housing and band. Replace in matched sets when possible and re-torque all fasteners. Basic hand tools and a nut driver are required.
Genuine OEM replacement with fast shipping from NationalHVACParts.com.