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The Goodman 0128F00006 Chimney Transition Bottom is a genuine OEM flue/vent component for the Amana AMVC80804CXCA 80% AFUE gas furnace and related Goodman/Amana models. This transition piece routes combustion products from the induced-draft blower into the vent connector, maintaining the proper draft path and sealing the exhaust route. A corroded or missing transition can leak flue gases and disrupt venting.
The OEM 0128F00006 is stamped to the exact dimensions and gasket geometry of this furnace's vent assembly, so it seals correctly with no field fabrication. Universal sheet-metal substitutes rarely match the flange pattern and can leave draft leaks. For any flue component, OEM fitment is the safe choice.
Moderate (2/5). Requires partial disassembly of the venting and correct re-sealing. Because this handles combustion byproducts, verify draft and check for flue-gas leaks with the furnace running after installation. When in doubt, have a licensed technician confirm safe venting.