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The Goodman 10716003 Natural Gas Orifice is a genuine OEM burner spud for the AMH81155CNAC gas furnace and compatible Goodman/Amana models. The orifice meters the exact volume of natural gas fed into each in-shot burner, setting the furnace's BTU input and flame quality. A worn, enlarged, or incorrect orifice throws off the air/fuel ratio and can cause overfiring or sooting.
Orifice sizing is exact — the drilled bore diameter directly controls firing rate. This OEM Goodman orifice is bored to the factory specification for your furnace's rated input at standard manifold pressure. Generic or mislabeled orifices can under- or over-fire the unit, risking condensation, short cycling, or heat-exchanger stress. Always match OEM for gas components.
Moderate (2/5). Shut off gas and power. Unthread the old orifice from the manifold with a deep socket, thread in the new spud, and confirm it is snug but not overtightened. Check for gas leaks with soap solution and verify manifold pressure after install.
All parts are sold new. Do not substitute an LP (propane) orifice — this part is for natural gas only.