Lennox 17F56 – 619598-51 Cold End Header Box Kit is an OEM replacement component designed specifically for Lennox EL296 Series high-efficiency gas furnaces. This kit restores proper flue gas routing and ensures safe condensate management within the secondary heat exchanger assembly. Built to meet Lennox engineering specifications, the 17F56 header box maintains correct airflow and system pressure, helping protect furnace performance during heating cycles.

Ideal for technicians performing repairs on EL296 units, this genuine Lennox kit includes the required cold-end header box assembly engineered for long-term durability. Using OEM components ensures compatibility, safety, and optimal furnace efficiency while preventing issues caused by aftermarket substitutions.

 

Key Features:

• Genuine Lennox OEM 17F56 Cold End Header Box Kit
• Lennox catalog number 619598-51
• Designed for EL296 Series high-efficiency furnaces
• Ensures proper condensate management and flue gas routing
• Maintains correct furnace airflow and pressure balance
• Supports reliable operation and efficient performance
• Recommended for professional HVAC service and system restoration

 

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