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The Goodman B1392139 is a genuine OEM view-port (sight-port) bushing for the Goodman DHS80905CXA 80% AFUE gas furnace and compatible Goodman/Amana units. This bushing seats in the burner-compartment access opening and provides a clean, sealed port so a technician can visually confirm burner flame and ignition without opening the cabinet. It also protects wiring and tubing routed through the panel from chafing against bare sheet-metal edges. A missing or brittle bushing can leak combustion air and compromise a proper flame view.
The genuine OEM bushing is molded to the exact panel-hole diameter and thickness on this furnace, so it snaps in and seals correctly. Generic grommets that are slightly under- or oversized can fall out or fail to seal, allowing air infiltration around the burner box. For a small, inexpensive part, OEM fitment is the easy call.
Rated Easy (1 of 3). Installation takes just a few minutes: shut off power, pop out the old bushing, and press the replacement into the port until it seats fully. No tools required in most cases. A quick, low-cost fix to restore a proper burner sight port.