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The Goodman 0128F00006 Chimney Transition Bottom is a genuine OEM venting component for Goodman and Amana AMS81005CXAD gas furnaces. This transition piece channels hot flue gases from the heat exchanger collector box up into the draft hood and chimney/vent connector, maintaining proper draft and a sealed exhaust path. A cracked, rusted, or missing transition can allow flue gas leakage and disrupt venting, so a correct-fit replacement is important for safe operation.
The OEM 0128F00006 is stamped to the exact dimensions of your furnace's flue collar and cabinet opening. Generic transitions rarely match the flange pattern, leading to gaps that compromise the vent seal. OEM ensures a leak-free, code-compliant fit.
Easy (2/5). Remove the existing transition screws, seat the new bottom piece, fasten, and seal joints with approved high-temp sealant or foil tape. Verify proper draft after reassembly.