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The Goodman 4053501S Chimney Collar is a genuine OEM flue-vent connector engineered for the AMH80904BNAA 80% AFUE gas furnace and other compatible Goodman and Amana models. This collar seats the vent pipe to the furnace flue outlet, maintaining a secure, code-compliant connection that safely routes combustion byproducts to the chimney or vent system. A correct, tight-fitting collar is essential for proper draft and to prevent flue gas leakage.
Choosing the genuine OEM 4053501S guarantees an exact dimensional match to the furnace flue outlet, proper draft-hood clearance, and factory-grade corrosion resistance. Generic collars often vary in diameter and metal gauge, which can cause draft problems, rattling, or improper venting. For a safety-critical flue component, OEM is strongly recommended.
Difficulty: Easy (1 of 5). Typically a slip-fit connection secured with sheet-metal screws; basic hand tools required. Always shut off gas and power before servicing, and verify proper draft after installation.