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The genuine Goodman 10716003 natural gas burner orifice (spud) is a precision-drilled OEM part for the GCH950904CXAC gas furnace and compatible Goodman/Amana models. The orifice meters the exact volume of natural gas delivered to each burner, setting the furnace's BTU input and ensuring a clean, correctly-sized flame. Even a slightly wrong bore size changes the firing rate and can cause sooting, poor combustion, or unsafe operation.
Orifice bore diameter is the single most important spec on this part, and Goodman OEM orifices are drilled to the manufacturer's certified size for your altitude and manifold pressure. Generic orifices with an approximate bore can over- or under-fire the furnace. For a combustion component, always use the OEM part.
Difficulty: Moderate — gas-handling required. Shut off gas and power, remove the manifold or burner as needed, unthread the old orifice, and install the new spud snugly (do not overtighten). Allow 30–45 minutes. Leak-test all joints with soap solution before relighting. If you are not comfortable working on gas lines, hire a licensed technician.