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The Goodman 0154F00004 Gasket is the genuine OEM sealing gasket for the ACEC800804BXAA gas furnace. This heat-resistant gasket maintains an airtight seal between mating components — such as the burner box, vent, or access panel — preventing flue-gas leakage, air bypass, and pressure loss that can degrade combustion efficiency and trip pressure switches. A cracked, compressed, or missing gasket is a common cause of pressure-switch faults and rattling/whistling complaints.
The genuine OEM 0154F00004 is die-cut to the exact bolt pattern and thickness required for a proper compression seal. Generic gasket stock must be hand-cut and rarely matches the original sealing surface, risking leaks. For a sealing component on a combustion appliance, OEM fitment is strongly recommended.
Moderate — requires removing the sealed panel, scraping off old gasket residue, cleaning the surface, and reseating the new gasket evenly before re-torquing fasteners. Best performed by an HVAC technician to ensure a leak-free seal.