OEM Goodman 3" In-Shot Burner for GMV80704BXBA — B4022700

Goodman B4022700 3" In-Shot Burner

The B4022700 is the genuine OEM 3-inch in-shot burner for the Goodman GMV80704BXBA 80% two-stage variable-speed gas furnace. Each in-shot burner meters and directs the gas/air mixture into its heat-exchanger tube for clean, quiet ignition and even flame carry-over across the burner bank. Over time in-shot burners rust, clog with scale, or develop distorted ports that cause rough ignition, flame roll-out, delayed light-off, and sooting. Replacing a worn burner restores crisp ignition and safe, efficient combustion.

• OEM Part Number: B4022700
• Part Type: In-shot gas burner
• Size: 3 inch
• Fits Model: Goodman GMV80704BXBA (GMV80 series in-shot burner assembly)
• Material: Coated steel
• Equipment: 80% AFUE gas furnace

OEM vs. Generic

Burner geometry directly controls flame quality and safety. The OEM B4022700 is built to Goodman's exact port pattern and throat dimensions, so ignition and flame carry-over match the furnace's gas valve and orifice sizing. Generic burners can shift the flame profile and trigger flame-sensor or roll-out faults. For a combustion component, factory-spec is the right call — and for a matched burner bank, replace all burners together.

Installation Difficulty

Moderate (3/5). Requires removing the burner box, transferring or replacing burners while keeping them aligned to the manifold orifices, and verifying flame after restart. Best handled by a qualified technician. Shut off gas and power before servicing, and check for proper ignition and no roll-out on start-up.