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The Goodman 10716003 is a factory OEM natural gas burner orifice engineered for the Goodman GCH90453BXAB gas furnace and compatible 90%+ AFUE models. The orifice meters the precise flow of natural gas into each burner, ensuring a clean, stable blue flame, correct BTU input, and efficient, safe combustion. A worn, clogged, or incorrectly drilled orifice causes lazy yellow flames, sooting, delayed ignition, and lockouts — replacing it with the exact OEM part restores rated performance.
The OEM Goodman 10716003 is drilled to the exact orifice diameter specified for this furnace's gas valve and manifold pressure, guaranteeing correct fuel metering. Generic aftermarket orifices are often mis-sized, risking over- or under-firing, nuisance lockouts, and voided warranties. For a safety-critical gas component, OEM is strongly recommended.
Intermediate — requires shutting off gas, removing the burner assembly, and swapping the orifice. Manifold pressure should be verified afterward. Gas work should be performed by a qualified HVAC technician.