Utica-Dunkirk 550003057 Pilot Assembly

The Utica-Dunkirk 550003057 Pilot Assembly is a critical combustion component engineered for high-efficiency gas-fired boilers. This natural gas and liquid propane pilot assembly arrives with the necessary orifices to ensure precise ignition across different fuel types. Designed as a rugged HVAC replacement part, it provides the essential flame rectification required for safe burner operation. This unit serves as the direct OEM replacement for 550001911 and 550001912, ensuring absolute mechanical compatibility with legacy Utica and Dunkirk systems. For technicians performing boiler maintenance, this assembly addresses erratic ignition cycles and weak flame signals often caused by carbon buildup or thermocouple degradation. The 550003057 ignition pilot is built to withstand high-combustion chamber temperatures, maintaining structural integrity and consistent spark-to-pilot performance. Integrating this factory-authorized gas boiler pilot burner restores the system to original manufacturer specifications, ensuring reliable heat delivery and minimizing nuisance lockouts in residential and light commercial hydronic applications.

• Direct OEM Fit: Drop-in replacement for part numbers 550001911 and 550001912, eliminating the need for field modifications.
• Dual Fuel Versatility: Includes orifices for both natural gas pilot and LP configurations to match site-specific fuel requirements.
• Reliable Flame Sensing: Optimized geometry ensures the pilot burner assembly provides a stable flame for consistent thermocouple or thermopile heating.
• High-Grade Construction: Manufactured with materials rated for continuous thermal cycling within the heat exchanger environment.

Is the 550003057 compatible with older Utica boilers?
Yes, this assembly is the designated technical successor to several legacy parts, specifically 550001911 and 550001912. It maintains the same mounting footprint and alignment for the burner tray.

Does this unit include the orifice for propane conversion?
Yes, the 550003057 pilot assembly is supplied with the necessary orifices to accommodate both Nat and LP gas pressures, making it a versatile boiler ignition component for various installations.

Will this fix a boiler that keeps locking out on ignition failure?
If the diagnostic indicates a localized flame sensing issue or a failure to light the main burner, replacing the Utica-Dunkirk pilot assembly is the standard service procedure to restore reliable ignition sequencing.

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.