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The Goodman B1392139 View Port Bushing is a genuine OEM grommet that seats in the flame-observation (sight) port of Goodman ADVC80805CNAA gas furnaces. This bushing seals the inspection opening while allowing technicians to safely view the burner flame. A cracked, missing, or hardened bushing can allow air leakage that disturbs combustion and flame-sensing, leading to nuisance lockouts.
This is a genuine OEM Goodman part molded to the exact bore and heat rating of the original. Generic bushings are often the wrong diameter or use lower-temperature plastic that deforms near the burner box. OEM ensures a snug, heat-tolerant seal that will not shrink or fall out.
This is a simple press-in replacement. Turn off power and gas, remove the burner access panel, pop out the old bushing, and press the new one into the port. Total time is under 10 minutes with no special tools required — an ideal DIY-friendly repair.
Replace your worn sight-port seal with the OEM Goodman B1392139 bushing to keep combustion airflow tight on your ADVC80805CNAA furnace.