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The Goodman 1439389S is a genuine 9 x 6 inch blower scroll housing built as a direct-fit replacement for ARPF193116BA air handlers and related Goodman/Amana models. The housing encloses the blower wheel and shapes airflow into the duct system; replacing a cracked, rusted, or warped housing restores proper static pressure, reduces air noise, and protects the wheel and motor from imbalance.
OEM housings match the exact cutoff geometry and mounting flange of your air handler, so the wheel clears the scroll and the motor mount lines up without modification. Aftermarket housings frequently differ in cutoff angle or bolt pattern, causing rubbing, vibration, and reduced CFM. The genuine 1439389S keeps the blower assembly balanced and quiet.
Moderate — about 45–90 minutes. The blower assembly usually must be pulled, and the wheel and motor transferred into the new housing with correct wheel-to-cutoff clearance. Confirm power is off at the breaker before removing the assembly. A licensed HVAC technician is recommended if you are not experienced with blower removal and re-balancing.