IMAGE COMING SOON
OEM Guaranteed
Same-Day Ship
30-Day Returns
Secure Checkout
The Goodman 0128F00006 Chimney Transition Bottom is a genuine OEM flue/vent component for the Amana/Goodman AMS81005CXAB gas furnace. This sheet-metal transition piece routes combustion byproducts from the furnace's induced-draft outlet into the vent connector, preserving the correct venting geometry so the flue draws properly and exhaust gases are carried safely out of the home.
OEM vs. Generic: Venting components are dimension-critical — the transition must align exactly with the induced-draft blower outlet and vent connector. The OEM piece is stamped to Goodman's spec so the draft path and clearances are correct. A generic or fabricated substitute can create leaks, poor draft, or a flue-gas hazard.
Install difficulty: Moderate (3/5). Replacement involves sheet-metal screws and sealing the vent joints; best handled by an HVAC technician who can verify draft and check for spillage after reassembly. Always shut off power and gas and allow the furnace to cool before servicing.