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The Goodman 10716003 Natural Gas Burner Orifice (spud) is a genuine OEM metering component for the WGGE4348A070MAB gas furnace and compatible Goodman and Amana models. This precision-drilled brass orifice threads into the manifold and sets the exact volume of natural gas delivered to each burner. Correct orifice sizing is critical — it determines the BTU input, flame quality, and combustion efficiency of your furnace.
OEM vs. Generic: The genuine Goodman orifice is bored to the manufacturer's specified drill size for this furnace's rated input. A generic or mis-drilled orifice can over- or under-fire the burner, producing sooting, delayed ignition, or dangerous incomplete combustion. For a gas-carrying part, OEM tolerances matter.
Install difficulty: Easy–Moderate (2/5). The orifice unscrews from the manifold with a nut driver or wrench once the burner assembly is accessed. Shut off gas and power before servicing, and always leak-test connections with soap solution after reassembly. Replacing gas-train components is best performed by, or verified by, a licensed HVAC professional to ensure safe combustion.