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The genuine OEM Goodman 10716003 natural gas orifice (burner spud) meters the flow of natural gas into each burner on the GMH950703BXAF 96% AFUE two-stage furnace. Its precision-drilled bore sets the input rate and the air/fuel mixture, which directly governs flame quality, efficiency, and safe combustion. A clogged, corroded, or incorrectly sized orifice produces a lifting or sooting flame, reduced heat output, or delayed ignition — so exact OEM sizing matters.
The OEM 10716003 is drilled to Goodman's exact orifice-size specification for this furnace's manifold pressure and BTU rating. Generic or mis-drilled orifices change the firing rate, which can overfire the heat exchanger or starve the burners. For correct, safe combustion, always match the OEM spud.
Rating: Moderate (3/5). Budget 20–30 minutes. Shut off gas and power, remove the burner manifold, back out the old orifice with a nut driver or socket, thread in the new spud snug (do not overtighten), and reassemble. After installation, leak-check every joint with soap solution and verify a clean blue flame. Gas-side work should be performed by a qualified technician.