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The Goodman 10716003 is a genuine OEM natural-gas burner orifice (spud) built for the WFM18115S5CXCB furnace and related Goodman and Amana gas models. This precision-drilled brass fitting threads into the manifold and meters the exact volume of natural gas delivered to each burner. Correct orifice sizing is essential for a clean, stable blue flame, proper BTU input, and safe, efficient combustion — an incorrect or worn orifice can cause sooting, lifting flames, delayed ignition, or reduced heat output.
Genuine Goodman orifices are drilled to the precise diameter the furnace was rated for. Generic orifices sometimes vary a drill size or two, which shifts BTU input and combustion quality. For a gas-metering part, the exact OEM bore is the difference between a properly tuned burner and a nuisance service call — always match OEM.
Easy (1 of 3). Shut off gas and power, remove the burner, unscrew the old orifice from the manifold, and thread in the replacement — snug, do not over-torque. Confirm the flame appearance and, where required, verify manifold pressure after the swap. About 15 minutes for a qualified installer.