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The Goodman B1392139 View Port Bushing is a genuine OEM component for the Goodman ADVC80805CXBB gas furnace. This bushing seats the burner viewing window (sight port) in the blower or burner compartment, allowing safe visual inspection of the flame while helping maintain the sealed combustion enclosure. A missing or cracked bushing can allow air leakage and compromise proper draft.
Genuine Goodman OEM ensures the bushing matches the port diameter and depth of the ADVC80805CXBB cabinet exactly. Generic grommets may be loose or the wrong temperature rating, defeating the seal. Because this is an inexpensive part in a sealed-combustion area, the OEM piece is the right choice.
Very Easy (1/5). A tool-free snap-in replacement. Turn off power, pop out the old bushing, and press the new one into the port opening until it seats. No wiring or gas connections involved — one of the simplest furnace repairs.