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The Goodman 4053501S Chimney Collar is a genuine OEM flue-venting component for the GMV80905CXA gas furnace. This collar provides the transition connection between the furnace draft hood and the vent pipe, ensuring combustion byproducts are channeled safely into the flue. A properly fitted vent collar is critical for correct draft, safe flue-gas evacuation, and code-compliant venting.
This factory OEM collar is sized to the exact flue outlet diameter of the GMV80905CXA, so the vent pipe seats cleanly with proper clearance. Generic collars can leave gaps that allow flue-gas leakage or poor draft — a safety concern with any combustion appliance. For venting integrity, install the genuine OEM part.
Easy (2/5) — Positions at the flue outlet and secures with sheet-metal screws. Shut off power and gas before servicing. After installation, verify proper draft and inspect the connection for leaks; if you are not comfortable working on venting, have a licensed HVAC technician perform the replacement.