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The OEM Goodman B1392139 view port bushing fits the Amana/Goodman AMVC961205DNAA modulating variable-speed 96% AFUE gas furnace. It frames and seals the burner/flame sight window, letting a technician safely observe the flame while keeping the combustion area sealed against air leaks.
A poorly fitted or low-temp generic bushing can distort near the combustion chamber and break the seal, affecting draft and flame reads. The genuine B1392139 uses a heat-rated material sized to the factory viewport opening for a lasting, airtight fit.
Easy (1/5). Press the old bushing out and snap the new one into the viewport opening. No tools needed. Turn off gas and power before opening the burner compartment.