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The Goodman B4022700 3-Inch In-Shot Burner is a genuine OEM replacement designed for the AMV80905CXBA and compatible Goodman/Amana gas furnaces. This burner delivers the precise gas-air mixture your furnace needs for a clean, quiet, and efficient flame. Over time, in-shot burners collect rust, scale, and debris that cause rough ignition, delayed lighting, or an uneven flame — replacing them with the correct OEM part restores dependable heating performance.
Our OEM Goodman burner is manufactured to exact factory port geometry, guaranteeing the correct flame pattern and safe operation. Generic burners may vary in port sizing, leading to flame rollout, sooting, or a tripped flame sensor. For a heat-exchanger-adjacent component, we strongly recommend OEM.
Difficulty: Moderate. Burners are typically replaced as a set. Shut off gas and power, remove the burner assembly, swap the affected burner, and verify alignment with the igniter and flame sensor. Recommended for experienced DIYers or an HVAC technician. Always inspect the heat exchanger while burners are removed.