Weil-mclain 383600043 Ultra 550 750 Replacement Burner Kit 6-section

Product Description

The Weil-McLain 383600043 is a factory replacement burner kit designed for the Ultra 550 and Ultra 750 gas-fired water boilers. This kit covers the size 6-section boiler configuration and includes everything needed to restore proper combustion performance to a unit that has reached end of burner life or suffered burner damage. HVAC technicians working on commercial and high-efficiency residential heating systems will recognize this as a direct OEM replacement that matches the original design specifications of the Ultra series boiler line.

Gas-fired water boilers rely on a precision burner assembly to mix fuel and air at the correct ratio for safe, efficient combustion. When a burner deteriorates, corrodes, or warps from extended heat exposure, combustion efficiency drops and the unit may fail to meet CSA safety standards. Replacing the burner with the correct OEM part restores full rated output and keeps the boiler operating within certified parameters. The 383600043 kit is built to CSA applicable standards, making it compliant for use in both commercial and residential applications where code-approved components are required.

This kit includes the replacement burner, a new gasket, and the necessary nuts for installation. Having all hardware in one package reduces downtime on the job. Technicians do not need to source additional fasteners or sealing components separately. The gasket ensures a proper seal between the burner and boiler section, which is critical for preventing flue gas leakage and maintaining combustion chamber integrity. This is a straightforward drop-in replacement for a qualified HVAC service technician familiar with the Ultra boiler platform.

• Direct OEM replacement burner for Weil-McLain Ultra 550 and Ultra 750 gas-fired water boilers
• Sized for 6-section boiler configurations and meets CSA applicable standards
• Kit includes burner, gasket, and nuts for a complete installation with no additional hardware required

Product Highlights

The Weil-McLain 383600043 replacement burner kit provides a complete, CSA-compliant combustion repair solution for Ultra 550 and Ultra 750 6-section gas-fired water boilers. It includes all necessary hardware for a clean, efficient installation.

Product Information

Standard Information

• Brand: WEIL-MCLAIN
• Manufacturer Part Number: 383600043

Technical Specifications

• Item Type: Burner Kit
• Configuration: 6-Section
• Applicable Standard: CSA
• Used On: Gas Fired Water Boiler
• Compatible Models: Ultra 550, Ultra 750
• Kit Contents: Burner, Gasket, and Nuts
• Warranty: 1 Year Limited