OEM Goodman 3" In-Shot Burner for AMVC800804CXAB Furnace — B4022700

The Goodman B4022700 3-inch In-Shot Burner is the OEM single gas burner for the AMVC800804CXAB gas furnace and compatible Goodman/Amana models. In-shot burners inject the gas-air mixture directly into the heat-exchanger tubes for clean, efficient combustion. Over time burners can rust, clog with debris, or develop flame-rollout and delayed-ignition issues — replacing worn burners restores smooth lighting and a stable blue flame across the manifold.

Specifications

• OEM Part Number: B4022700
• Type: In-shot (mono-port) burner
• Size: 3 inch
• Function: Fuel-air delivery into heat exchanger
• Fit Type: Direct OEM replacement (order one per burner position)

OEM vs. Generic

Burner geometry — port size, throat length, and mounting slot — directly controls flame quality and ignition timing. The genuine Goodman B4022700 matches the furnace's manifold spacing and orifice alignment for reliable cross-lighting between burners. Generic burners can cause uneven flame, delayed ignition, and flame-sensing faults. For a complete refresh, replace all burners in the set together.

Installation Difficulty

Moderate (2/5). Shut off gas and power, remove the burner-box cover and manifold, slide out the old burners, and align the new ones over the orifices. Verify flame appearance and check for gas leaks with soapy water on completion. Plan 30–45 minutes; if unsure, use a licensed technician.