This gasket should be replaced whenever the pilot assembly is removed or if you notice cracking or carbon buildup around the pilot tube entry point into the combustion chamber

a compromised seal at the secondary heat exchanger leads to pressure switch trips and dangerous flue gas leakage

Common Questions Is this kit required for all Gen2 compressor swaps

the Carrier 329117-703 is a mechanical airflow component and functions regardless of the fuel kit installed on the furnace

Lennox 17F07 Collector Box 322056-301 This gasket should be replacedWhen you're dealing with condensate leaks or secondary heat exchanger drainage issues, the Lennox 17F07 Collector Box is the direct OEM replacement mandated for a proper seal. This Cold End Header Box Kit acts as the critical interface between the heat exchanger and the inducer motor, managing the collection and routing of combustion by products. Measuring approximately 24 inches in length and 8 inches in width, this high density plastic component is