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The Goodman 0128F00006 Chimney Transition Bottom is a genuine OEM flue-vent component for the AMH80604BXBC 80% AFUE gas furnace. This transition piece connects the furnace's induced-draft outlet to the vent/chimney connector, channeling flue gases smoothly out of the cabinet and maintaining the proper draft the combustion system relies on.
A corroded, warped, or missing transition can leak flue products or disrupt venting, so replacing it with the exact-fit OEM part preserves a safe, sealed vent path. This bottom section is sheet-metal formed to the precise dimensions of this furnace's vent opening.
The OEM 0128F00006 is stamped to match the exact flue opening and screw pattern of this furnace, ensuring a leak-free fit. Universal transitions often require trimming and field sealing that can compromise the vent. OEM is the simplest way to guarantee a proper seal.
Easy (1/5). Remove the vent connector, back out the sheet-metal screws, swap the transition, and reseal with high-temp foil tape or approved sealant as needed. Around 15–20 minutes. Verify proper draft after reassembly.