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The Goodman B1392139 View Port Bushing is a genuine OEM component designed for the ADSS801005CXAB gas furnace. This small but essential grommet seats the flame-inspection sight glass in the burner compartment, protecting the port edge and maintaining the cabinet seal that keeps combustion air isolated from the blower stream.
This is a genuine OEM Goodman bushing, machined to the exact port diameter so it snaps in flush without deforming. Generic universal grommets are often the wrong bore and can fall out or leak combustion air over time. For a proper seal and factory fit, the OEM part is the safe choice on a component this inexpensive.
Easy (1/5). No tools required in most cases — press the old bushing out and snap the new one in. Always shut off gas and power to the furnace before opening the burner compartment. If you are unsure about combustion-side components, consult a licensed HVAC technician.