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The Goodman B1392139 is a genuine OEM view port bushing for the Amana/Goodman AMVC80805DXCA furnace and compatible models. This small but important grommet seals the sight-glass inspection port on the burner compartment, allowing technicians to safely observe the flame while maintaining the integrity of the combustion enclosure. A cracked or missing bushing can allow air leakage that affects flame stability and combustion-air balance.
Because this bushing sits adjacent to the burner area, it must be made from the correct high-temperature material and sized precisely to the port opening. Generic rubber grommets can degrade, deform, or fail to seal, compromising combustion-air balance. This OEM part ensures a proper, heat-resistant seal.
One of the simplest repairs you can make — usually under 5 minutes. With power off, press out the old bushing and snap the replacement into the port opening. No tools required. An inexpensive part that's worth replacing whenever it shows cracking or hardening.