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The Goodman 10716005 Natural Gas Orifice is a genuine OEM burner spud for GDH80403AXBD gas furnaces. The orifice meters the precise volume of natural gas delivered to each in-shot burner, setting the furnace's rated BTU input. A worn, corroded, or incorrectly sized orifice throws off the gas/air mixture, causing lazy yellow flames, sooting, or reduced heating capacity.
OEM vs. Generic: Orifice drill size is critical — it is matched to fuel type, manifold pressure, and elevation for this specific furnace. Genuine Goodman orifices are precision-machined to the correct bore. Generic or mis-drilled orifices can over- or under-fire the burner, creating a carbon-monoxide or efficiency risk. Always match the exact part number; do not substitute an LP orifice on a natural-gas unit.
Install difficulty: Easy. Shut off gas and power, unthread the old orifice from the manifold with a socket, and install the new one snugly. Verify manifold pressure and flame color after startup. Replace as a matched set if servicing multiple burners.