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The Goodman B1392139 View Port Bushing is a small but essential genuine OEM component for ACVC800805CXAA gas furnaces and compatible Goodman/Amana models. It seats in the burner-compartment sight-glass opening, sealing the view-port window and maintaining the integrity of the combustion enclosure while still allowing the flame to be observed safely.
Over years of heat cycling, the original bushing can harden, crack, or fall out, breaking the seal around the view port. Replacing it restores a clean, tight fit so the access panel and sight glass perform as designed.
Because this bushing sits on a combustion-compartment panel, the OEM version is sized to the exact bore diameter and rated for the temperatures it sees. A generic grommet may not match the opening or hold up to heat, leading to a loose or melted seal. At this price point, OEM is the obvious choice.
Rated 1/5. With the furnace off and the burner door removed, the old bushing presses out and the new one presses in by hand in under 5 minutes. No tools required.