The Lennox 40W53 Control Replacement Kit is the direct OEM solution for restoring high-voltage spark and sequence timing in vintage Lennox furnace units and commercial boilers

this 100135299 burner assembly is utilized in both NG and LP configurations

this Aaon motor replacement is optimized for Aaon housing and shaft requirements to ensure proper fitment

ensuring proper manifold pressure during commissioning

Trane BAYATXV1836B TXV Kit 320819-301 The Lennox 40W53 Control ReplacementThe Trane BAYATXV1836B is a factory authorized field installed TXV kit designed to optimize refrigerant metering on 1. 5 to 3 ton evaporator coils. Engineering for precision, this thermal expansion valve kit replaces standard fixed orifice devices to provide superior superheat control, protecting the compressor from liquid slugging while maximizing heat transfer efficiency in 18,000 to 36,000 BTU systems. This Trane TXV conversion kit is a critical