OEM Goodman 3 in. In-Shot Burner for AMS80805CXAD — B4022700

The Goodman B4022700 3-Inch In-Shot Burner is a genuine OEM burner for the AMS80805CXAD gas furnace and compatible Goodman/Amana 80% AFUE models. Each in-shot burner directs the gas/air mixture into one tube of the heat exchanger, where it is lit by the igniter and carried across the manifold. Rusted, warped, or clogged burners cause uneven ignition, delayed light-off, flame rollout, and sooting — replacing worn burners restores a crisp, even blue flame and quiet, efficient heating.

• Part number: B4022700
• Type: In-shot (single-port) furnace burner
• Size: 3 in. burner length
• Fits: Goodman/Amana AMS80805CXAD and related 80% AFUE furnaces
• Material: Coated steel for corrosion resistance
• Sold as: Individual burner (replace as a matched set for best results)

OEM vs. Generic: Burner geometry — port size, air-shutter position, and length — is tuned to this furnace's manifold pressure and orifice size. The OEM B4022700 guarantees the correct flame pattern and carry-over. Generic burners can shift the flame envelope, affecting the flame sensor signal and combustion. For a combustion component, OEM is strongly recommended.

Install difficulty: Moderate (2/5). Shut off gas and power, remove the burner-box cover and manifold, slide the old burner off its mounting slot, and index the new burner over the orifice. Budget 30–45 minutes to do the full set. Verify flame carry-over and check for rollout after startup.