Industrial Construction: The malleable iron housing provides superior shock absorption and thermal stability in extreme mechanical rooms

Industrial-Grade Durability: Designed to withstand the high-frequency switching and thermal loads typical of commercial refrigeration

valve control

The hydraulic action sensing element ensures rapid response times by maintaining direct contact with the pipe surface

The compact housing facilitates easy integration into existing control panels

Lennox 31K74 Blower Shaft 319852-301 Industrial Construction: The malleable ironThe Lennox 31K74 Blower Shaft is a critical replacement component engineered for heavy duty rotation in residential and commercial air handlers. Measuring 18 inches in length with a 1 inch diameter, this shaft is manufactured from 1045 or C45 carbon steel to provide superior torsional strength and resistance to bowing under high torque loads. As a genuine OEM Lennox part, it ensures precise tolerance matching for blower wheel hubs and bearing