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 engineered for AMVC800603BXAB furnaces. This transition piece routes combustion gases from the furnace collar into the venting system, maintaining the correct geometry and clearances the appliance was certified with. Using the factory part ensures a proper seal and safe draft.
Venting parts are safety-critical. The OEM 0128F00006 matches the exact flange pattern, dimensions, and collar diameter of your furnace, so it seats correctly and preserves proper draft. Generic or fabricated transitions risk gaps that leak flue gases or disrupt draft — never acceptable on a combustion appliance. OEM is the only recommended choice here.
Moderate — 30 to 45 minutes. Shut off gas and power, disconnect the existing vent connector, remove fasteners, and install the new transition with fresh high-temp sealant or gaskets as required. Verify a tight seal and confirm proper draft after reassembly. If you are not comfortable working with combustion venting, we recommend a licensed HVAC technician perform this repair.