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The B1392139 is a genuine Goodman/Amana OEM view port bushing designed for the AMH80803BNBD gas furnace and other compatible 80% AFUE models. This small but essential rubber grommet seats the sight-glass window on the burner compartment door, letting technicians visually confirm flame ignition and burner operation without opening the cabinet. A cracked, missing, or hardened bushing lets combustion air leak past the observation port and can allow the sight glass to rattle loose — this exact-fit replacement restores a clean, sealed inspection window.
This is a genuine Goodman OEM component, molded to the exact bore and lip dimensions of the factory port. Universal aftermarket grommets often sit loose or degrade quickly against combustion-area heat. The OEM bushing guarantees a snug, heat-rated seal and preserves your furnace warranty coverage.
Easy (1 of 5). No tools required in most cases — power down the furnace, pop the old bushing out of the door port, and press the new one into place. A 5-minute job for a homeowner or technician.
Always disconnect power at the service switch before servicing. If you are unsure of compatibility, verify against your furnace nameplate or contact us with your full model number.