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The Goodman B1392139 View Port Bushing is a genuine OEM sealing grommet for the flame-inspection sight port on the AMV80703BXA gas furnace. It creates an airtight seal around the observation window so technicians can safely inspect burner flame while preventing combustion-air leakage and pressure-switch faults. A dried-out, missing, or cracked bushing can cause nuisance lockouts and improper draft readings.
The OEM Goodman bushing is molded to the exact port diameter and rated for sustained furnace-cabinet heat. Generic grommets may fit loosely or degrade faster near the combustion area, breaking the seal.
Very Easy (1/5). A tool-free push-in replacement taking under 5 minutes. Turn off power and let the furnace cool before servicing.