Lennox 47K04 Manifold 322057-301 the integrated access port allows

the integrated access port allows for pressure readings or charging without the need for additional line taps

Reduces friction on the 1/4" diameter valve stem

This specific auto limit switch is the direct engineering successor to the legacy 5H74976-3

extending the service life of existing valve bodies without requiring full piping teardowns

this replacement will resolve the issue

Lennox 47K04 Manifold 322057-301 the integrated access port allowsEnsure reliable gas distribution in residential and commercial furnaces with the Lennox 47K04 Manifold. This OEM Lennox replacement part is engineered to meet precise manufacturer tolerances, facilitating uniform fuel delivery to the burner assembly. As a furnace gas manifold, it plays a critical role in the combustion system, providing the consistent pressure required for efficient heat exchanger performance. Designed for durability, this Lennox HVAC