Lennox 58L67 Burner Assembly

The Lennox 58L67 Burner Assembly is a high-precision, 3-tube in-shot replacement designed to restore thermal efficiency in Lennox gas furnaces. Built for rigorous heating cycles, this OEM Lennox part measures 9 inches by 5 5/8 inches, featuring a factory-aligned cluster that ensures consistent flame distribution across the heat exchanger. As a direct replacement for legacy part numbers 50J53, LB-94731B, and LB-64500B, it eliminates common combustion issues such as delayed ignition or uneven heating. This assembly is specifically engineered for 75,000 BTU units, including widely installed Lennox G24, G26, and G32 series models. For contractors, this 3-burner assembly provides a drop-in solution that meets exact HVAC replacement parts specifications, maintaining the manufacturer's intended air-to-fuel ratio. Replacing a corroded furnace burner assembly with this genuine component prevents localized overheating of the heat exchanger cells and ensures reliable signal strength for the flame sensor.

• Optimized Combustion: Factory-set in-shot tubes deliver a stable flame pattern for maximum heat transfer.
• Broad Compatibility: Direct fit for Allied, Armstrong, Concord, and Ducane models using part LB-94731B.
• Heavy-Duty Construction: High-grade materials resist oxidation and warping in high-temperature combustion chambers.
• Reduced Service Time: Pre-assembled cluster design allows for rapid field installation during furnace tune-ups.

Which Lennox furnace models use the 58L67 burner?
This 3-tube assembly is primarily used in 75,000 BTU furnaces, including the G23, G26, G32, and G40 series. Always verify the BTU rating on the unit's nameplate to ensure correct burner sizing.

Does this assembly replace Lennox part number 50J53?
Yes, the Lennox 58L67 is the current manufacturer-specified replacement for the older 50J53 and LB-94731B cluster assemblies.

Why are my furnace burners rusting or soot-covered?
Corrosion often occurs due to high humidity or chemical exposure in the mechanical room. Replacing the Lennox burner assembly is critical if the ports are clogged or the metal has thinned, as this can lead to unsafe combustion levels.

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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.