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The Goodman 10716003 natural gas orifice (burner spud) is a genuine OEM metering component for GKS90905DXAA gas furnaces and compatible Goodman/Amana models. The orifice threads into the manifold and precisely meters the volume of natural gas delivered to each burner, setting the input rate and ensuring a clean, correctly-sized flame. A wrong-size, damaged, or debris-clogged orifice causes poor ignition, sooting, delayed light-off, or an incorrect firing rate — so matching the exact drill size is essential.
The OEM orifice is drilled to Goodman's exact specification for the model's BTU input and elevation — the safest choice on a gas-metering part. The Generic equivalent matches the same thread and drill size at a lower price for out-of-warranty service. Always confirm the fuel type and orifice number before installing.
Moderate (2/5). Shut off gas and power. Unthread the old orifice from the manifold and thread in the replacement snugly — do not over-torque brass. Leak-check all joints with soap solution and verify a clean blue flame on startup.