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The B1392139 is a genuine OEM view port (sight glass) bushing used on Goodman and Amana ADSS800403AXAA gas furnaces. This small but critical grommet seals the flame-inspection port on the burner compartment, letting a technician safely observe ignition and burner flame while maintaining the combustion-chamber seal. A cracked, brittle, or missing bushing can allow air leakage and compromise the sight-port seal, so replacing it with the exact OEM part restores proper furnace operation.
This is the genuine OEM Goodman component, engineered to the exact dimensions and heat rating of the original. Generic bushings may not match the port diameter or withstand burner-compartment temperatures, leading to a poor seal. For a guaranteed fit on the ADSS800403AXAA, the OEM part is recommended.
Easy (1/5). Press-fit replacement that takes only minutes with the furnace powered off. No special tools required.
Compatible model: ADSS800403AXAA. Not sure this fits your unit? Contact us at info@nationalhvacparts.com with your full model number.