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The genuine OEM Goodman/Amana M0570808 Button Plug is a snap-in cabinet fitting designed for AMES960403BUAB gas furnaces and compatible Goodman/Amana models. This small but essential component seals unused knockouts and access holes in the furnace cabinet, blocking air leaks, dust, and pests while maintaining proper airflow and combustion sealing.
Generic universal plugs are inexpensive but frequently fit loosely, pop out over time, or fail to seal the exact knockout diameter. This genuine OEM M0570808 is molded to Goodman's precise cabinet spec for a tight, permanent snap fit — no rattles, no air bypass.
Easy (DIY, 1/5). No tools required. Simply press the plug into the open cabinet hole until it clicks flush. Always disconnect power before servicing your furnace.