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This genuine OEM Goodman 10716003 natural gas orifice (burner spud) meters fuel into the in-shot burners of the AMH80904BXCC gas furnace. The precision-drilled bore sets the gas flow rate that, combined with the venturi, determines each burner's BTU input. A damaged, corroded, or incorrectly-drilled orifice throws off the air/fuel mixture and can cause lazy flames, sooting, delayed ignition, or under/over-firing.
Orifice bore size is drilled to a precise diameter for the furnace's rated input at a given altitude — a difference of a few thousandths of an inch changes firing rate and combustion safety. Genuine Goodman orifices are factory-drilled to the AMH80904BXCC spec, while generic spuds may be mislabeled or off-size. For correct, safe combustion, fit OEM and verify manifold pressure after installation.
Moderate (intermediate DIY / pro recommended, 20–30 min). Shut off gas and power, remove the manifold, thread out the old orifice with the correct socket, install the new spud, and reassemble. Check manifold pressure and flame quality before returning to service.