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The Goodman 4053501S Chimney Collar is a genuine OEM flue & vent component engineered for the AMH80453ANAC 80% AFUE gas furnace. The collar seals the transition between the furnace flue outlet and the vent connector, ensuring combustion gases are directed safely into the chimney or vent pipe. A correctly seated collar is essential for maintaining proper draft and preventing flue-gas spillage into the equipment area.
This is the factory OEM collar, dimensioned to match the flue opening on your Goodman/Amana furnace exactly. Universal or generic collars often require field trimming and can leave gaps that compromise the vent seal. Choosing the OEM part guarantees a proper fit and a safe, code-compliant vent connection.
Easy (1/5). The collar mounts to the flue outlet with standard sheet-metal screws and typically installs in a few minutes with basic hand tools. Always shut off gas and power before servicing, and verify draft after reassembly. When in doubt, have a licensed HVAC technician confirm the vent connection.