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The B4022700 is a genuine OEM 3-inch in-shot burner for the Goodman WFD18090S4BXCC gas furnace. In-shot burners deliver a precise, aimed flame into each heat-exchanger tube for clean, efficient combustion. Over time burners rust, clog with scale, or develop flame-carryover problems that cause rough ignition, sooting, or a rollout trip. Replacing worn burners restores crisp lightoff and even heating across all tubes.
Burner geometry directly controls flame shape and combustion safety. The OEM Goodman B4022700 matches the venturi throat, port angle, and mounting slot the WFD18090S4BXCC manifold expects, so flames aim correctly into each tube. Generic burners with slightly different throats can cause flame impingement or carryover issues. For a combustion component, we recommend OEM. Replace burners as a matched set for even firing.
Moderate. Requires removing the manifold/burner assembly, sliding out the old burner, and re-seating the new one aligned to its tube. Plan 30–60 minutes. Shut off gas and power first, and verify flame at restart.