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The Goodman B1392139 View Port Bushing is a genuine OEM grommet that frames the flame-inspection sight port on the AMEC960603BNAB gas furnace. It seals the viewing opening in the burner compartment door, keeping the combustion area closed to room air while allowing safe visual inspection of the burner flame.
Because it sits at the combustion enclosure, a proper seal matters for safety and rated airflow. This OEM Goodman bushing is molded to the exact port diameter. Generic grommets may fit loosely, allow air leakage, or degrade in the heat of the burner compartment. The OEM part restores a factory-tight seal.
Easy — Press-fit replacement into the door/panel opening. No tools required beyond removing the access panel. About 5 minutes. Disconnect power before opening the furnace.