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The Goodman 4053501S is a genuine OEM chimney collar (flue vent connector) built as a direct-fit replacement for the Goodman/Amana AMH80453AXAA 80% AFUE gas furnace and compatible models. The collar mounts at the furnace's draft outlet and provides the transition where the vent pipe connects, directing combustion byproducts safely into the chimney or flue.
A rusted, loose, or corroded chimney collar can allow flue-gas leakage, poor draft, and unsafe operation. Installing the correct OEM collar restores a proper, sealed vent connection and safe combustion venting.
The genuine Goodman 4053501S matches the furnace's outlet diameter and mounting pattern exactly, ensuring a leak-free seal. Generic collars may not align with factory screw holes or vent sizing, risking flue-gas escape. For a combustion-venting part, OEM fitment is a safety priority.
Easy to moderate. Shut off gas and power, disconnect the vent pipe, remove the old collar, and fasten the replacement with the original screws. Verify draft after reassembly. When in doubt with venting, use a licensed HVAC technician.