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The Goodman M0570808 is a genuine OEM button plug for the Goodman/Amana AMES960804CNAA gas furnace. This snap-in plug fills unused knockouts and access holes in the furnace cabinet, blocking air bypass, keeping out debris and pests, and preserving the finished factory appearance. Sealing open holes also helps maintain correct airflow and combustion-air balance inside the cabinet.
Universal plugs rarely match Goodman's knockout diameter and tend to pop out or leave gaps. The OEM M0570808 snaps in with the correct retention tabs for a flush, secure seal that stays put through vibration and heat cycling. For a clean, leak-free cabinet, the genuine plug fits right the first time.
Easy (1/5). No tools required — align the plug with the open hole and press until the retention tabs snap into place. Disconnect power before opening the furnace. If the plug feels loose, confirm it matches the intended knockout size on your unit's parts diagram.
Genuine Goodman part, ships fast, backed by our AMES960804CNAA fit guarantee.