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The Goodman 0271A00016S Blower Housing is a genuine OEM replacement engineered for the WAHMS4961P4AAA air handler and compatible Goodman/Amana air-handling platforms. The blower housing (scroll) directs and accelerates the air discharged by the blower wheel, converting the wheel's rotational energy into the static pressure your duct system needs. A cracked, corroded, or warped housing causes air leaks, whistling, reduced CFM, and premature blower-motor strain — replacing it restores rated airflow and quiet operation.
This genuine OEM housing matches the factory cutout, mounting flange, and cutoff geometry exactly, so the blower wheel clears properly and CFM is maintained. Universal or generic housings often require drilling, shimming, or trimming and can introduce vibration and air bypass that aftermarket parts cannot fully seal. For a direct, drop-in repair, the OEM unit is the reliable choice.
Difficulty: Moderate (3/5). Requires removing the blower assembly, transferring the motor and wheel, and re-seating the housing. Plan 45–75 minutes. Disconnect power before servicing. Professional installation recommended if you are not comfortable handling blower components.