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The Goodman B4022700 is a genuine OEM 3-inch in-shot burner engineered for DMP150-52AA gas furnaces and compatible Goodman/Amana models. Each burner delivers the fuel-air mix to the heat exchanger, so worn, rusted, or misfiring burners cause rough ignition, delayed light-off, and uneven heat. Replacing them restores a crisp, consistent blue flame across the manifold.
This is the genuine Goodman OEM burner, machined to the exact port pattern and flame-carryover geometry of the original. Generic aftermarket burners often vary in port size and length, which can throw off cross-lighting between burners and trip the flame sensor. For reliable, spec-matched combustion we recommend the OEM part.
Moderate (2/5). Shut off gas and power, remove the burner assembly, slide out the old burner, and seat the replacement onto the manifold orifice. Most techs and handy homeowners complete a full set in under 30 minutes. Always verify flame appearance after relighting.