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The Goodman B4022700 3-inch In-Shot Burner is a genuine OEM combustion component for the AMS81005CXAD furnace and other compatible Goodman and Amana gas furnaces. In-shot burners inject a precisely shaped gas-air jet into each heat-exchanger tube, producing the clean, stable blue flame required for efficient, low-emission combustion. Over time burners can corrode, clog, or develop flame-rollout issues — replacing worn burners restores proper flame characteristics and safe ignition.
The genuine OEM Goodman burner is machined to the exact port geometry and orifice alignment your furnace was designed around, ensuring correct flame shape and burner-to-orifice spacing. Generic burners may vary in port pattern, causing flame impingement, sooting, or rollout. For combustion components, OEM is the safe choice.
Moderate (2/5). Requires removing the burner assembly, transferring individual burners, and verifying orifice alignment before firing. Always shut off gas and power first, and check flame quality and CO after installation. A licensed HVAC technician is recommended for combustion work.