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The Goodman 0154F00004 Gasket is the genuine OEM combustion sealing gasket for the ACES800804BXAA gas furnace. It forms an airtight seal between mating components such as the burner box, inducer assembly, or collector box, ensuring proper combustion airflow and preventing flue-gas leakage. A cracked, compressed, or missing gasket can cause draft-pressure faults, ignition problems, and unsafe flue leaks — so a fresh OEM seal should always be installed whenever these assemblies are opened.
OEM vs. Generic: This gasket is die-cut to the exact shape and thickness of the OEM mating surface, so it compresses evenly and seals on the first install. Cutting a generic sheet-gasket to fit risks gaps, blow-by, and pressure-switch faults. The OEM 0154F00004 guarantees the correct profile and bolt-hole pattern for a leak-free seal.
Install Difficulty: Moderate (3/5). Requires removing the sealed component (burner/inducer/collector box), cleaning old gasket residue from both surfaces, and reassembling evenly. Plan 30–45 minutes. Shut off power and gas, and verify a tight seal before returning the unit to service.