OEM Goodman 3 in. In-Shot Burner for AMH80703AXCB — B4022700

Goodman B4022700 3-Inch In-Shot Burner

The Goodman B4022700 is a genuine OEM 3-inch in-shot burner engineered for the AMH80703AXCB 80% AFUE gas furnace and other compatible Goodman and Amana models. Each in-shot burner directs a precisely shaped gas-and-air flame into its heat exchanger tube, and the venturi geometry is matched to the manifold pressure so the furnace burns cleanly and lights reliably across the burner rack. A rusted, clogged, or misaligned burner causes rough ignition, roll-out, or delayed flame propagation.

Specifications

• OEM Part Number: B4022700
• Type: In-shot burner, 3 in. length
• Fuel: Natural gas (verify orifice for LP)
• Application: 80% AFUE multi-position gas furnace
• Fits: Goodman / Amana AMH80703AXCB and compatible models
• Construction: Corrosion-resistant coated steel

OEM vs. Generic

The OEM B4022700 reproduces the exact venturi throat and mounting slot of the original, so flame carry-over and ignition timing stay within spec. Generic burners may have slightly different port sizing that shifts the flame pattern and can lead to sooting or flame-sensor faults. For safe, in-spec combustion, install the genuine burner.

Install Difficulty

Moderate (2/5). Shut off gas and power, remove the manifold, slide out the old burner, and index the new one on its locating tab. Replace burners as a matched set if the others show wear. A visual flame check after start-up is recommended.