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The Goodman 0128F00006 is a genuine OEM chimney transition bottom — the sheet-metal flue collar that channels combustion exhaust from the furnace into the vent connector on the Goodman/Amana ACVC800803BXAB gas furnace. A corroded, warped, or missing transition lets flue gases leak into the cabinet and compromises draft, so a clean OEM-fit piece is essential for safe, code-compliant venting.
The OEM 0128F00006 is stamped to the exact bend, flange, and bolt-hole pattern of the furnace's draft hood opening, ensuring a tight, leak-free seal. Universal flue parts often require trimming or extra sealant and can leave gaps that disrupt draft or vent CO. For a flue-gas component, OEM fit is the correct choice.
Difficulty: Easy to Moderate — Typically 20–30 minutes. Power down the furnace, disconnect the vent connector, remove the old transition's screws, seat the new 0128F00006, fasten, and seal per code with approved high-temp materials. Verify proper draft and perform a combustion/CO check before restoring service.