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This genuine OEM Goodman/Amana gasket (part 0154F00004) provides the combustion-side seal for the AMH80803BNAA 80% AFUE gas furnace. It seals the burner assembly to the heat exchanger inlet, ensuring products of combustion stay inside the exchanger and are drawn cleanly to the flue. A hardened, cracked, or missing gasket can allow flue-gas leakage, flame disturbance, and improper draft — so this seal should always be replaced any time the burner box or heat exchanger is opened for service.
Gasket thickness and cutout pattern must match the furnace mating surface to seal correctly. The OEM 0154F00004 is die-cut to the exact AMH80803BNAA footprint. Generic or cut-to-fit gaskets risk leaks and improper combustion, so the OEM part is strongly recommended for this safety-critical seal.
Moderate (3/5) — Requires removing the burner assembly and cleaning the old gasket residue from both mating surfaces before fitting the new seal. Best performed alongside heat-exchanger or burner service. A qualified HVAC technician is recommended. Time: 45–90 minutes.