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The genuine Goodman 10716003 Natural Gas Orifice is the OEM brass burner spud for the AMH81405DXAA 80% AFUE gas furnace and compatible Goodman/Amana single-stage models. Threaded into the manifold, the orifice meters the exact volume of natural gas fed to each in-shot burner. A worn, over-drilled, or debris-clogged orifice throws off the gas input rate, causing sooting, lazy flames, or under-firing.
The OEM 10716003 is precision-drilled to the factory orifice size that matches this furnace's rated BTU input and manifold pressure — critical for safe, on-spec firing. Generic or hardware-store orifices with the wrong drill size can over- or under-fire the appliance, a safety and warranty concern. Always match orifice sizing to the equipment rating plate.
Requires shutting off gas, removing the manifold or accessing the spud, and thread-sealing correctly. Verify manifold pressure with a manometer after install. Roughly 20 minutes for a technician; leak-test all joints before restarting.