The Williams P322391 Thermocouple is a high-output OEM replacement part designed for precision flame sensing in Williams wall furnaces

As an authentic OEM module kit

Rugged Durability: Features an all-welded steel body with a premium powder coat finish to prevent environmental corrosion

Engineered specifically for precision compatibility with Armstrong Air and Concord furnaces

and other light commercial equipment requiring an S3 interface

Lennox Y4003 Cap 319852-301 The Williams P322391 Thermocouple isThe Lennox Y4003 is a professional grade LMS CAP CBB65 motor run capacitor engineered for heavy duty HVACR applications. This 60 MFD 370V capacitor provides the essential phase shift required to initiate and maintain the torque of high efficiency compressors and fan motors in Lennox residential and commercial units. Built with a metallized polypropylene film dielectric, this round case component is designed to handle continuous duty cycles in