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The Goodman 10716003 Natural Gas Orifice is a genuine OEM burner spud for WFD18070S3AXCC furnaces. This precision-drilled orifice meters the exact volume of natural gas into each burner, setting the correct BTU input and clean flame. A worn, corroded, or wrong-size orifice causes sooting, poor ignition, or improper firing rate.
The genuine Goodman orifice is drilled to the precise diameter matched to this furnace's manifold pressure and altitude rating. A generic or mismatched drill size changes the firing rate and can create unsafe combustion. For a gas-metering component, always use the OEM part.
Moderate — gas work. Shut off the gas and power, remove the burner, thread out the old orifice, and install the new spud without over-tightening. Plan 20–30 minutes and leak-test all joints with soap solution before relighting. Gas repairs should be performed by a qualified technician.