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The Goodman 4053501S Chimney Collar is a genuine OEM flue/vent component for the GMPV100-3 furnace and compatible Goodman/Amana models. The chimney collar (vent connector) forms the sealed transition between the furnace's induced-draft outlet and the flue pipe, ensuring combustion byproducts are safely and correctly vented out of the home.
Replace if the original collar is rusted, cracked, warped, or no longer sealing to the flue — signs include visible corrosion, condensation stains, or a draft/pressure-switch fault caused by a venting leak. A proper vent seal is essential for safe carbon-monoxide evacuation.
The OEM Goodman 4053501S is dimensioned to match the furnace outlet and flue exactly, ensuring a leak-free connection. A generic equivalent may fit with minor adjustment but should be verified against your original for diameter and bolt pattern. Given the venting safety role, OEM is the recommended choice.
Requires disconnecting the flue pipe, removing the old collar, and resealing the new one — proper high-temp sealant and a tight, leak-checked joint are essential. Estimated time: 30–45 minutes. Because this affects combustion venting, professional installation is strongly recommended.