Lennox 43J57 Inducer Motor Assembly

The Lennox 43J57 is a genuine OEM inducer motor assembly designed for compatible Lennox gas furnaces. This critical component creates the draft necessary to safely vent combustion gases from the furnace through the flue system while also proving proper airflow before the main burners ignite.

Key Features:

• Genuine Lennox OEM replacement part for reliable performance and proper fit
• Inducer motor assembly creates negative pressure to vent exhaust gases safely
• Pressure switch connection ensures proper draft verification before ignition
• Direct replacement for failed or noisy inducer assemblies
• Designed specifically for Lennox residential gas furnaces

The inducer assembly is one of the first components to activate during the furnace heating cycle, running before the ignition sequence begins. A failed inducer motor will prevent the furnace from operating, making this a critical replacement part for maintaining home comfort and safety.