Lennox 18L57 – 619796-05 Inshot Burner Assembly is a genuine OEM replacement burner set engineered to restore proper combustion performance in compatible Lennox gas furnaces. This inshot burner assembly is designed to deliver consistent gas flow, stable ignition, and even flame distribution across the heat exchanger, helping maintain efficient and reliable furnace operation.

Manufactured to Lennox factory specifications, the 18L57 burner assembly ensures correct fitment, durability, and long-term performance when servicing or repairing residential and light commercial heating equipment. The kit includes five inshot burners, making it suitable for full burner replacement during maintenance, repair, or refurbishment to address ignition issues, uneven heating, or burner wear.

This part has a replacement history under the same catalog and model numbers (18L57 / 619796-05), ensuring continuity and compatibility with earlier installations. Ideal for professional HVAC technicians, contractors, and service applications where OEM-quality components are required to meet safety and performance standards.

Product details
Brand: Lennox
Catalog Number: 18L57
Model / Part Number: 619796-05
Type: Inshot Burner Assembly
Quantity: 5 burners (5-pack)
Base Unit of Measure: Unit(s)
EAN / UPC: 66255154646
Gross Weight: 2 lb

The Lennox 18L57 inshot burner assembly is recommended for furnace repairs where dependable ignition, proper combustion, and OEM reliability are critical.