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The Goodman 0154F00004 is a genuine OEM gasket seal designed for the Goodman ACVC800803BXAB two-stage variable-speed gas furnace. This high-temperature gasket creates the air-tight seal between mating combustion-side components — keeping flue products contained, maintaining proper draft, and preventing combustion air leaks that hurt efficiency and safety. Replacing a hardened, cracked, or compressed gasket is essential any time the burner or collector box has been opened.
OEM gaskets are die-cut to the exact bolt pattern and thickness of your furnace, ensuring uniform clamping pressure and a proper seal. Generic or trimmed-to-fit gaskets often leak at the corners and can degrade quickly under repeated heat cycling, allowing combustion byproducts to escape.
Moderate (3/5). Requires partial disassembly of the combustion area, scraping the old gasket, cleaning the mating surface, and reassembling with proper torque. Best performed by an experienced DIYer or HVAC technician. Shut off gas and power, and verify a leak-free seal before returning the furnace to service.