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This genuine OEM natural gas burner orifice (spud) is a direct-fit replacement for the Goodman/Amana AMVC801005CXAB two-stage variable-speed furnace and many other Goodman, Amana, and Daikin 80% AFUE gas models. The orifice threads into the manifold and meters the precise flow of natural gas to each burner, ensuring clean, efficient combustion and a stable flame. A worn, corroded, or incorrectly drilled orifice causes poor flame quality, sooting, delayed ignition, or lockouts — replacing it with the factory-spec part restores proper firing rate.
Generic aftermarket orifices are drilled to a nominal size and can vary enough to alter the firing rate and CO output. This genuine OEM Goodman/Amana orifice is drilled to the exact factory bore for your model, keeping input BTU and combustion within spec — important for warranty and safety compliance.
Easy (2/5). Shut off gas and power, remove the burner assembly or manifold, unthread the old orifice, and thread in the new one. A licensed technician should verify manifold pressure and combustion after replacement.