The Lennox 17F44 Cold End Header Box Kit (619598-42) is an OEM replacement component designed specifically for Lennox SLP98 series high-efficiency gas furnaces. This kit is installed on the cold end of the heat exchanger assembly and plays a critical role in directing flue gases through the condensing section of the furnace.

Manufactured to Lennox factory specifications, this header box kit ensures proper condensate management, maintains correct airflow through the heat exchanger, and helps preserve the furnace’s rated efficiency. Using a genuine Lennox OEM part helps prevent fitment issues, premature corrosion, and performance loss that can occur with non-OEM alternatives.

This component is commonly replaced during major heat exchanger service, corrosion-related repairs, or when upgrading damaged header box assemblies in SLP98 furnaces.

 

Key Features:

OEM Lennox replacement part for exact fit and performance
Designed for condensing gas furnace applications
Supports proper flue gas flow and condensate drainage
Corrosion-resistant construction for long-term reliability
Meets original factory safety and efficiency standards

 

Specifications:

Manufacturer: Lennox
OEM Part Number: 17F44
Catalog Number: 619598-42
Application: Cold end header box assembly
Furnace Type: High-efficiency condensing gas furnace
Compatible Models: Lennox SLP98 Series