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The Goodman M0570808 Button Plug is a genuine OEM cabinet fitting engineered for the AMEC961005CNAD gas furnace and many other Goodman/Amana furnace platforms. This small snap-in plug fills unused knockouts and access holes in the furnace cabinet, blower compartment, or control panel, keeping the airstream sealed and preventing dust, debris, and combustion-air leakage through openings left over from field wiring or venting changes.
Although inexpensive, a missing button plug can quietly degrade furnace performance by allowing return-air bypass and reducing negative-pressure integrity in the burner box. Using the correct OEM plug restores the factory seal and keeps your cabinet looking and performing as designed.
Generic universal plugs are sold in mixed-diameter packs and rarely seat flush, often popping loose from panel vibration. The OEM M0570808 is dimensioned to the exact Goodman knockout, so it snaps in securely and stays put for the life of the unit — no rattles, no air leaks.
Easy (DIY-friendly). No tools required — align the plug with the open hole and press until it snaps flush. Always shut off power and gas before opening any furnace panel.