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The Goodman 4053501S Chimney Collar is a genuine OEM flue/vent component engineered for the ADV80703BXA gas furnace and other compatible Goodman and Amana models. The chimney collar forms the transition between the furnace flue outlet and the vent connector, keeping combustion byproducts contained and routed safely out of the home. A properly seated, undamaged collar is essential for maintaining draft and preventing flue-gas spillage.
Because this is a factory OEM part, the flange geometry, diameter, and mounting pattern match the original component exactly — no field modification or improvised adapters required.
This genuine OEM collar guarantees an exact seal at the flue outlet, which is critical for a code-compliant venting connection. Generic vent collars often require shimming or sealant to compensate for size mismatches, increasing the risk of flue-gas leakage. For a safety-critical venting part, OEM is the recommended choice.
Moderate. Replacement typically requires disconnecting the vent connector, removing fasteners, and reseating the new collar with the correct high-temperature sealant. Because this part handles combustion gases, we recommend installation by a licensed HVAC technician and a post-install draft/spillage check.