IMAGE COMING SOON
OEM Guaranteed
Same-Day Ship
30-Day Returns
Secure Checkout
The Goodman B4022700 is a genuine OEM 3-inch in-shot burner engineered for the AMS81155CXAA gas furnace and compatible Goodman/Amana models. In-shot burners deliver the air-fuel mixture into each heat-exchanger tube, and their condition directly affects ignition reliability, flame quality, and combustion efficiency. Rust, scale, or a warped venturi causes rough ignition, delayed light-off, and short cycling — all corrected by installing fresh OEM burners.
OEM Goodman burners are stamped and tuned to the exact venturi and port pattern the furnace was certified with, preserving the factory air-fuel calibration. Generic burners can alter flame geometry, cause flame impingement on the heat exchanger, and shorten its life. For safe, spec-correct combustion, OEM is strongly recommended.
Moderate (3/5). Requires removing the burner rack and reseating the burner over the orifice with correct alignment. Shut off gas and power first. Replace burners as a matched set for even firing. Professional installation recommended.