This Lennox cold end header box kit is a genuine OEM replacement designed specifically for Lennox EL297 series high-efficiency gas furnaces. The cold end header box plays a critical role in the heat exchanger assembly by managing condensate flow and maintaining proper combustion efficiency. Replacing a damaged or leaking header box helps restore safe furnace operation, prevents corrosion, and protects surrounding components from moisture-related damage.Manufactured to Lennox factory specifications, this kit ensures a precise fit and reliable sealing when installed on compatible EL297 furnaces. It is engineered for long-term durability under high-temperature and condensing conditions commonly found in modern high-efficiency HVAC systems. This replacement is recommended for professional technicians performing heat exchanger or condensate system repairs where OEM accuracy and performance are required. 

 

Product overview:

Genuine OEM cold end header box replacement kit
Designed for Lennox EL297 series furnaces
Restores proper condensate management and furnace efficiency
Precision-molded for correct fit and leak-free installation
Ideal for service repairs involving the heat exchanger cold end

 

Specification:

Brand: Lennox
Part number: 25A93
Alternate part number: 619598-63
Product type: Cold end header box kit
Application: Gas furnace heat exchanger assembly
Compatibility: Lennox EL297 series furnaces
Condition: New, OEM replacement