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The Goodman B4022700 3-inch In-Shot Burner is the genuine OEM replacement burner for VMS80804BNAA 80% AFUE gas furnaces and compatible Goodman/Amana models. Each in-shot burner delivers the fuel-air mixture into the heat exchanger tube for a clean, quiet, and efficient flame. Cracked, rusted, or sooted burners cause delayed ignition, rollout, and short cycling — replacing them restores reliable heat and safe combustion.
This is a factory OEM Goodman burner — the port pattern, venturi throat, and mounting tab are matched exactly to your furnace's manifold spacing. Generic burners may light unevenly or misalign with the flame sensor, triggering nuisance lockouts. For combustion components we always recommend the OEM part to protect your warranty and keep flame timing correct.
Rated 2 of 5. Shut off gas and power, remove the burner box cover, slide the old burner off the manifold orifice, and seat the replacement onto the same rack rail. Basic hand tools and 15–20 minutes. Verify flame appearance and carryover after start-up. If you are unsure about gas components, use a licensed HVAC technician.