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The B4022700 is a genuine OEM 3-inch in-shot burner for the Goodman/Amana AMH80403ANBC gas furnace. Each in-shot burner directs a precise gas-air jet into its heat-exchanger tube for clean, quiet ignition and complete combustion. Replace burners that are rusted, cracked, or producing an uneven or yellow flame.
The OEM burner is stamped to the exact port geometry and orifice alignment of the AMH80403ANBC, delivering the flame pattern the furnace was engineered for. A mismatched Generic burner can misalign with the flame sensor or heat exchanger, causing rollout, poor flame sense, or sooting. For safe, efficient combustion, use OEM and replace burners as a matched set.
Moderate (3/5). Requires removing the burner assembly and reseating the burner over the orifice with correct alignment. Best for an experienced DIYer or technician. Shut off gas and power, and verify flame after restart.
Tip: replace all burners together for a uniform, balanced flame.