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The Goodman 0128F00006 Chimney Transition Bottom is a genuine OEM flue/vent component that connects the furnace's induced-draft outlet to the vent pipe on your Amana/Goodman AMVC80805CNCA 80% furnace. This transition channels combustion gases from the inducer housing into the chimney or B-vent, maintaining the proper draft path the furnace was engineered for.
A corroded, cracked, or misfit transition can allow flue-gas leakage, poor draft, or condensate damage. Replacing it with the exact OEM part restores a sealed, code-correct venting connection.
The OEM 0128F00006 is formed to the precise dimensions and mounting pattern of your furnace's inducer and vent collar. A generic or hand-fabricated transition risks air leaks, draft problems, or gaps that let flue gas escape — a safety concern with any venting part. We strongly recommend the OEM component for a leak-free, code-compliant fit.
Moderate (2/5). Shut off power and gas, disconnect the vent pipe, remove the mounting screws and old transition, seat the new transition, reseal all joints with approved high-temp sealant/tape, and reattach the venting. Verify proper draft and check for spillage at startup with a combustion analyzer or smoke test.