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The Goodman 4053501S Chimney Vent Collar is a genuine OEM flue-connection component engineered for the AMS80703AXAA 80% AFUE gas furnace and compatible Goodman/Amana models. It provides the sealed transition between the furnace draft hood and the vent pipe, ensuring safe, code-compliant venting of combustion byproducts.
This is the factory OEM collar, guaranteed to match the original flue diameter and mounting flange exactly — no gaps, no field modification, and no venting-safety compromises. Aftermarket collars often require trimming or extra sealant and can leak flue gases. For a combustion-venting part, OEM fit is strongly recommended.
Difficulty: Easy (1/5). A basic replacement for an HVAC technician. Power down the furnace, disconnect the vent pipe, remove the old collar, seat the new 4053501S, and re-seal the joints. Always verify proper draft after installation.
Backed by exact-fit sourcing for NationalHVACParts.com.