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The Goodman 10716003 is a precision-machined natural gas burner orifice designed as an exact-fit replacement for the Goodman GDT045-3A gas furnace and compatible models. This small brass spud threads into the burner manifold and meters the exact amount of gas delivered to each burner port, setting the gas-to-air ratio that governs flame color, stability, and rated BTU input. Over time orifices can clog with debris, corrode, or become enlarged, producing poor flames, sooting, or reduced heat — a fresh OEM orifice restores factory combustion performance.
Genuine OEM orifices carry a factory-certified drill diameter that matches your furnace's designed gas flow. Aftermarket or hand-drilled orifices risk over- or under-firing the unit, hurting efficiency and safety. At this price point, the OEM part is the smart, low-cost insurance.
Moderate (2/5) — Shut off gas, remove the burner or manifold to access the orifice, and thread in the replacement with a nut-driver or wrench. A post-install flame check is recommended; professional service is advised where code requires.