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The Goodman 10716003 Natural Gas Orifice is a genuine OEM burner spud engineered for the GKS90904CXAD gas furnace. The orifice meters the precise volume of natural gas delivered to each burner, setting the flame size and the furnace's rated BTU input. An orifice with the wrong drill size — or one clogged, corroded, or damaged — causes poor combustion, sooting, delayed ignition, or an over/under-fired furnace, so exact OEM sizing is essential for safe, efficient operation.
The OEM Goodman orifice is factory-drilled to the exact bore diameter matched to your furnace's manifold pressure and BTU rating. Generic or mis-drilled orifices alter the fuel/air ratio and can create unsafe combustion. OEM guarantees the correct natural-gas drill size for the GKS90904CXAD.
Moderate (3/5). Requires shutting off gas and power, removing the burner assembly, and threading the orifice to spec. A combustion analysis to confirm proper flame and BTU input is strongly recommended — best performed by a licensed HVAC technician.
Confirm fuel type before ordering — this is a natural-gas orifice only. Questions? info@nationalhvacparts.com.