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The Goodman 10716003 Natural Gas Orifice is a genuine OEM burner spud for the Goodman GCH90453BXAA gas furnace. This precision-drilled brass orifice meters the exact volume of natural gas delivered to each burner, setting the flame size and ensuring clean, efficient, and safe combustion. An orifice with the correct bore is critical — an incorrect size can cause sooting, poor efficiency, delayed ignition, or unsafe operation.
Orifice sizing is fuel- and model-specific. Genuine Goodman OEM orifices are drilled to the factory bore for your furnace's rated BTU input, guaranteeing proper combustion. Generic or mismarked orifices risk over- or under-firing the burner — a combustion-safety concern. Always match OEM specs for gas components.
Moderate. Shut off gas and power, then unthread the old orifice from the manifold and thread in the replacement. Because this affects combustion, a post-install check of flame appearance and a leak test are strongly recommended — have a licensed HVAC technician verify if you are not confident.