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The Goodman 0154F00004 Gasket is a genuine OEM sealing component for the ADSS800804BXAD gas furnace and related Goodman/Amana models. This gasket creates a leak-tight seal between mating combustion or manifold surfaces, preventing flue-gas escape and maintaining proper combustion-chamber pressure. A worn or missing gasket can allow air infiltration, poor flame quality, and potential carbon-monoxide leakage, so a correct OEM replacement is essential during any burner or heat-exchanger service.
OEM vs. Generic: The genuine 0154F00004 is die-cut to Goodman's exact bolt pattern and thickness, guaranteeing a proper crush and seal. Generic or cut-to-fit gaskets may not match the flange geometry, leading to leaks and repeat service calls.
Install Difficulty: Moderate — replacing the gasket requires partial disassembly of the burner or manifold assembly. Best performed by a qualified HVAC technician who can leak-test the seal after reassembly. Plan on 30–45 minutes.