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The genuine Goodman/Amana 10716003 natural gas orifice (burner spud) meters the precise fuel flow into each burner of the AMV90453BXBB gas furnace. The drill size is factory-matched to this furnace's BTU input on natural gas, ensuring a clean, efficient flame and correct combustion. A damaged, corroded, or incorrectly-drilled orifice causes poor flame, sooting, or improper firing rate.
Orifice sizing is critical — the OEM 10716003 is drilled to the exact diameter certified for this furnace's input rating and altitude table. A generic or mis-sized orifice changes the firing rate and can produce dangerous incomplete combustion. Always use the OEM-specified orifice for natural gas.
Moderate. Requires shutting off the gas supply, removing the burner assembly or manifold, and threading in the new orifice to spec. Because this affects combustion, a licensed HVAC technician should perform and verify the installation, including a combustion analysis.