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The Goodman B1392139 View Port Bushing is the genuine OEM grommet that frames and seals the flame-inspection sight port on the burner compartment door of the Amana/Goodman AMVC801005CXAA gas furnace. It provides a clean, heat-resistant opening so you can observe burner ignition and flame quality without pulling the door. A missing or brittle bushing allows air infiltration and can disrupt the pressure-switch signal.
This small but precise part must match the door cutout diameter exactly to seal correctly. The OEM Goodman bushing snaps in flush and is rated for the burner-compartment heat. Generic grommets rarely match the exact diameter and may not tolerate the temperature, leading to a loose or melted fit. At this price point, OEM is the obvious choice.
Very easy (1/5). No tools required — simply press the old bushing out and snap the new one into the door port. A 2-minute replacement.
Allow the furnace to cool before handling components near the burner box.