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The genuine OEM Goodman 4053501S chimney collar is the flue-connection component for the AMS80904BXAA gas furnace and compatible Goodman/Amana models. It provides the transition between the furnace's induced-draft outlet and the vent pipe, ensuring a secure, properly sealed connection that carries combustion byproducts safely out of the home. A damaged or corroded collar can allow flue-gas leakage — a serious safety concern.
The OEM 4053501S matches the factory flue-outlet diameter and mounting flange, delivering a leak-free seal on the first fit. Generic collars may not seat properly, risking flue-gas leaks and failed inspections. For a combustion-venting part, OEM is the safe choice.
Moderate. Involves detaching the vent connection, fitting the collar, and sealing per code. Because it handles flue gases, professional installation and a proper draft check are strongly advised.
Genuine Goodman quality, shipped fast from National HVAC Parts.