Lennox 85L49 Inducer Assembly

The Lennox 85L49 Draft Inducer Assembly is a critical OEM replacement part designed for specific 120V gas furnaces, including the 80MGF and 80UHG series. This centrifugal blower unit features a shaded pole motor rated at 3000 RPM and 1.3 Amps, engineered to create the precise negative pressure required to close the pressure switch and initiate the ignition sequence. This assembly facilitates the safe expulsion of combustion gases from the heat exchanger into the flue, ensuring your system maintains peak efficiency. Constructed with a durable plastic fan and a high-efficiency motor, the 85L49 replaces older HVAC part numbers such as 88K84 and LB-98714A. A complete combustion air blower replacement typically resolves common field issues like seized bearings, excessive vibration, or "no-heat" calls caused by a failing assembly that can no longer maintain proper draft requirements.

Key Benefits

• Direct OEM Replacement: Ensures a perfect drop-in fit for Lennox 80MGF and 80UHG furnace models, matching original factory mounting specs.
• Complete Kit: Includes the draft inducer motor, housing, and three high-quality gaskets to ensure an airtight seal during installation.
• Enhanced Safety: Effectively purges the heat exchanger of residual flue gases, preventing backdrafting and carbon monoxide hazards.
• Heavy-Duty Construction: Features a thermally protected 3000 RPM motor and corrosion-resistant components for long-term reliability in high-heat environments.

Common Questions

What are the signs that my current 85L49 inducer is failing?
Contractors often report loud screeching or grinding noises indicating bearing wear. If the motor hums but the furnace fails to ignite, the inducer may be seized or rotating below the necessary RPM to trigger the pressure switch.

Is this unit compatible with the 88K84 part number?
Yes, the 85L49 is the direct furnace inducer replacement for discontinued part numbers including 88K84, 88K8401, and LB-98714A.

Does this assembly include the necessary gaskets?
This Lennox draft inducer comes as a complete kit including the motor, fan, housing, and three gaskets, allowing for immediate installation without sourcing additional hardware.

This item is not eligible for free shipping.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.