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The Goodman B4022700 is a genuine OEM 3-inch in-shot burner engineered for AMS80805CXAA gas furnaces and compatible Goodman/Amana 80% AFUE models. The in-shot design directs a precise, stable flame into the heat exchanger tube, delivering clean combustion and reliable ignition every heating cycle. A worn, rusted, or clogged burner can cause delayed ignition, rollout, or uneven heating — replacing it restores factory performance and safe operation.
This is a factory Goodman burner built to the exact port geometry and flame profile the AMS80805CXAA was designed around. Generic aftermarket burners may be close in size but can shift flame position, affecting flame-sensor rectification and combustion tuning. For furnaces, matching the OEM burner protects heat-exchanger longevity and keeps combustion within spec — we recommend OEM here.
Difficulty: Moderate. Burners are usually swapped as a set. Shut off gas and power, remove the burner assembly, transfer the new burner to the manifold, and verify flame alignment and sensor contact on restart. Roughly 30–45 minutes for an experienced tech. Because it involves the gas train, HVAC-licensed installation is recommended.
Backed by our fast-ship guarantee. Verify your furnace model number before ordering to ensure fit.