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The Goodman 10716003 Natural Gas Orifice is a genuine OEM burner spud designed for GKS90904CXAA gas furnaces. The orifice meters the precise volume of natural gas delivered to each burner, setting the furnace's BTU input and ensuring a clean, efficient flame. A worn, corroded, or incorrectly sized orifice can cause improper combustion, sooting, poor efficiency, or unsafe operation. Using the factory-specified orifice size is essential for correct manifold pressure and safe heating.
OEM vs. Generic: Orifice drill size is critical — even a fraction of a size off changes the gas flow and can create a dangerous over- or under-fired condition. The OEM 10716003 is drilled to Goodman's exact specification for this furnace, unlike generic multi-packs that require field verification. Never substitute an LP (propane) orifice for a natural gas application.
Install Difficulty: Easy to Moderate — a 15–30 minute job that requires shutting off the gas supply and removing the burner assembly. After installation, always verify manifold pressure and flame quality. If you are not experienced with gas appliances, hire a licensed HVAC professional.