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The Goodman 10716005 Natural Gas Orifice is a genuine OEM burner component engineered for AMEC800403ANAB gas furnaces and compatible Goodman/Amana models. The orifice (also called a spud) meters the precise flow of natural gas into each burner so the furnace fires cleanly and at its rated input. A worn, corroded, or incorrectly sized orifice is a common cause of sooting, lazy flames, and poor heating efficiency.
This is the factory-specified OEM orifice, drilled to the exact bore your furnace was rated for. Generic or universal orifices may look identical but a bore mismatch changes the gas input rate — leading to inefficient combustion or safety lockouts. For a metering part, OEM-exact is strongly recommended.
Moderate — replacement is mechanically simple (thread out the old spud, thread in the new one), but it involves the gas manifold. Always shut off the gas supply, and if you are not comfortable working on a gas train, have a licensed HVAC technician perform the swap and verify flame quality afterward.