Utica-Dunkirk 240005543 Burner Tube

The Utica-Dunkirk 240005543 Burner Tube is a high-performance, 1.5" OD burner tube engineered for long-term reliability in specialized combustion systems. Featuring a 22-5/8" overall length, this cast iron boiler burner tube replacement utilizes an advanced venturi design to stabilize flame architecture and optimize gas-air mixture, particularly in high-demand residential and commercial hydronic applications. This OEM component serves as a direct, drop-in replacement for Utica MGB series boilers (sizes 50 through 250) and various Dunkirk counterparts, ensuring smooth ignition and quiet operation even under fluctuating gas pressures.

As a veteran tech, you know that maintaining burner integrity is critical for preventing rollout and ensuring heat exchanger longevity. This HVAC replacement part is fabricated from premium materials to resist high-temperature oxidation and corrosive scale buildup common in LP and natural gas systems. Whether you are performing a seasonal maintenance overhaul or a specific Utica boiler repair, the precise seating of the 240005543 ensures no modification is required for most MGB units manufactured after 2005. Its robust construction minimizes downtime by eliminating the resonance issues found in cheaper, non-genuine alternatives.

• Precision Engineered: Features a high-efficiency venturi profile to improve gas flow and prevent inefficient combustion.
• Broad Compatibility: Direct replacement for Utica-Dunkirk burner tube assemblies in MGB 50-250 models without requiring door modifications.
• Extreme Durability: Heat-resistant alloy construction prevents warping and maintains orifice alignment over years of thermal cycling.
• Quiet Operation: Designed to dampen harmonic resonance, ensuring a significantly quieter burner tray during startup and modulation.
• OEM Fitment: Genuine factory part ensures 1.5-inch outer diameter and length specifications meet original equipment standards.

• Is this burner tube compatible with LP gas and Natural Gas systems? Yes, the 240005543 is designed to handle both fuel types efficiently within the specified Utica and Dunkirk boiler series.
• Does this require the modified burner door kit (550001347)? For MGB 50 through 250 models, it is a direct fit. Only the MGB300 series requires the specific door kit to accommodate these updated tubes.
• What are the physical dimensions for fitment verification? This part measures approximately 22-5/8 inches in length with a 1.5-inch outer diameter (OD).

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Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.