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The Goodman B1392139 View Port Bushing is a genuine OEM fitting for the AMVC800805DNAB gas furnace. This bushing frames and seals the burner sight-glass opening on the furnace panel, allowing safe visual inspection of the burner flame while maintaining the door's air and flue-gas seal. A cracked, missing, or brittle bushing can cause air leaks that upset combustion and pressure-switch operation.
A generic grommet may not match the panel bore or withstand the heat near the burner box, leading to a loose fit or heat distortion. This genuine OEM bushing is molded to the exact diameter and temperature rating for a secure, lasting seal.
Rated Easy — a 5-minute press-in replacement. Remove power, pop out the old bushing, and seat the new one squarely in the panel opening. No tools typically required.