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The B4022700 in-shot burner is the genuine OEM 3-inch gas burner for the Goodman/Amana AMH80905CXCB furnace and compatible 80% AFUE models. Each in-shot burner directs the gas/air mixture into a heat-exchanger tube for clean, efficient combustion. Over time burners can rust, warp, or clog with debris, causing uneven flames, delayed ignition, roll-out, or sooting. Replacing worn burners as a set restores a crisp blue flame and reliable ignition.
The OEM B4022700 guarantees the exact venturi geometry and mounting slot for proper flame carryover between tubes. Our generic equivalent matches the 3" spec at a lower price. Both are new — order one per heat-exchanger tube and replace the full set for even performance.
Requires removing the burner assembly bracket and sliding burners off their rail; note orientation and igniter/sensor positions. Cut gas and power first. 20–40 minutes; leak-test the gas connections afterward.
Count your tubes to order the correct quantity. Questions? info@nationalhvacparts.com.