The Utica-Dunkirk 43300201 is a professional-grade 1/8 x 24 pilot tube designed for precision fuel delivery and consistent ignition in high-efficiency hydronic systems. This OEM replacement part is essential for maintaining the pilot flame assembly, ensuring gas is accurately channeled from the control valve to the burner. Engineered with a 1/8-inch outer diameter and a versatile 24-inch length, the 43300201 pilot tube features a built-in compression fitting specifically threaded for secure, leak-free integration. This component is cross-referenced as a direct replacement for various legacy numbers, including 433-00-201 and 97N70, and is typically found in Dunkirk PWXL, XEB Series II, and PWB Series boilers. For field technicians, this HVAC pilot burner tubing offers the necessary flexibility and structural integrity to withstand high-temperature combustion environments while preventing flame rollout or pilot outages caused by restricted gas flow. Key Benefits Direct OEM Compatibility: Specifically designed to fit Dunkirk PWXL, XEB Series II, and PWB Series boiler models for seamless field installation. High-Temperature Durability: Constructed from premium metals to prevent oxidation and bending under pilot flame heat cycles. Precision Gas Flow: The 1/8-inch diameter maintains the specific gas velocity required to hold a stable flame signal for the thermocouple. Simplified Integration: Includes a factory-shipped compression fitting, reducing the need for additional plumbing hardware in the field. Versatile 24-Inch Length: Provides ample reach for standard and extended burner tray configurations, allowing for custom routing if necessary. Common Questions Is this pilot tube compatible with multiple boiler brands? Yes, while listed under Utica-Dunkirk, this part is a standard replacement for many models within the ECR International family, specifically the Dunkirk XEB and PWB series. Always verify the part number against your unit's specific data plate. Does the 43300201 include the necessary fittings? This 1/8 x 24 pilot tube with fitting comes with a pre-installed nut and sleeve, allowing for immediate connection to the gas valve manifold. Why is my pilot flame orange instead of blue despite a new tube? An orange flame usually indicates an air-to-fuel ratio issue or debris in the pilot orifice rather than the tube itself. Ensure the pilot orifice is clear/unclogged during the installation of the new Utica-Dunkirk pilot burner part. 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.
