OEM Lennox Draft Inducer Motor Assembly — 19J04

The genuine OEM Lennox 19J04 draft inducer motor assembly is the combustion venter that safely draws exhaust gases out of your Lennox furnace's heat exchanger and pushes them through the flue. Every heating cycle begins with the inducer — it establishes proper draft, closes the pressure switch, and clears the combustion chamber before ignition. This complete assembly is built to Lennox specifications for airflow, fit, and electrical performance on 19J04 applications.

A failing draft inducer motor shows clear symptoms: the furnace won't start or locks out on a pressure-switch fault, you hear loud humming, grinding, or rattling from bad bearings, the motor runs slowly, or it fails to energize at all. Because the pressure switch depends on inducer airflow, a weak or dead inducer will stop the entire ignition sequence.

The OEM 19J04 assembly matters because it delivers the exact CFM and static pressure your Lennox furnace's venting and combustion system require. Aftermarket motors can under-draft, trigger repeated lockouts, or compromise safe venting of flue gases. Installing the factory inducer restores reliable startup, correct draft, and safe furnace operation.