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The Goodman 10716005 Natural Gas Orifice is a genuine OEM burner spud for the Goodman ACVC80803BXBC two-stage, variable-speed 80% AFUE furnace. The orifice (spud) threads into the manifold and meters the exact amount of natural gas delivered into each in-shot burner. Its precision-drilled bore sets the firing rate, so using the factory orifice size is essential for correct BTU output, clean combustion, and proper manifold pressure.
Orifice sizing is fuel- and model-specific. The OEM Goodman orifice is drilled to the exact diameter this furnace's gas valve and manifold pressure are matched to. A wrong-size or generic orifice changes the firing rate and can cause sooting, overheating, or under-firing. Never interchange natural-gas and LP orifices — they are not the same bore.
Difficulty: Moderate. Shut off the gas supply and electrical power, remove the burner box cover, and unthread the orifice from the manifold with a deep socket; about 15–30 minutes. Replace all orifices as a set for an even flame. Because this is a gas combustion component, we recommend a licensed HVAC technician verify manifold pressure and combustion after installation.