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The Goodman 5660205S Blower Housing is a genuine OEM 10 x 8 inch scroll housing for Goodman GUPS100-3 gas furnaces. The housing encloses the blower wheel and directs conditioned air into the supply plenum. Cracked, corroded, or damaged housings cause air leaks, whistling, rattling, and lost static pressure — replacing it restores rated airflow and quiet operation.
The OEM Goodman housing is dimensionally exact — motor mount cutouts, cutoff plate, and wheel clearances all match the factory blower deck, so it drops into the existing rails without modification. Generic housings are rarely a true fit for this size and often require drilling or bracket fabrication. For a clean, in-and-out replacement, use the OEM part.
Advanced. This is a full teardown: pull the blower assembly, transfer the motor and blower wheel to the new housing, set wheel-to-cutoff clearance, and reinstall the deck. Plan 1.5–2.5 hours with hand tools. Disconnect all power first. Given the labor and wheel balancing involved, a licensed HVAC technician is recommended.