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The Goodman B4022700 is a genuine OEM 3-inch in-shot gas burner engineered for the ADSS800403AXAD furnace and compatible Goodman/Amana models. Each in-shot burner mixes gas and primary air and directs the flame into a single heat-exchanger tube. Furnaces run a bank of these burners on the manifold; replace any that are cracked, rusted, corroded, or producing an uneven or yellow flame to restore clean, efficient combustion.
The OEM B4022700 is manufactured to Goodman's exact venturi and port geometry, which preserves the factory air-fuel mixture and flame characteristics. Generic burners can shift the flame pattern, cause flame-sensor dropout, or impinge on the heat exchanger. For a combustion component, OEM is strongly recommended — and burners should be replaced as a matched set when practical.
Moderate (3/5). Requires removing the manifold/burner assembly, sliding the burner off, and confirming correct alignment with the heat-exchanger tube and flame sensor. Shut off gas and power first, and check for proper ignition and flame color after service.