OEM Lennox Draft Inducer Assembly — 78P26
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The genuine OEM Lennox 78P26 draft inducer assembly is the motorized blower that pulls combustion gases through the heat exchanger and pushes them safely out the flue. It creates the negative pressure your pressure switches depend on and must run every heating cycle before the burners ignite. This complete assembly includes the motor and housing, matched to the airflow and mounting specifications of your Lennox furnace.
Common failure symptoms: A failing 78P26 may produce loud humming, grinding, or rattling noises, spin slowly, or fail to start — triggering a pressure-switch lockout and no heat. Worn bearings, a seized motor, or cracked housing are frequent signs the inducer needs replacement.
Why OEM matters: The draft inducer's CFM output directly controls safe venting and combustion. An underpowered or ill-fitting aftermarket unit can cause chronic pressure-switch faults, poor efficiency, or unsafe flue conditions. The factory Lennox 78P26 delivers the exact airflow, wheel balance, and bolt pattern your system was engineered for — ensuring quiet, reliable, and safe operation.
Shipping Information
- Orders placed before 3PM CST ship same business day
- Standard delivery: 2-5 business days
- Express shipping available at checkout
- Free shipping on orders over $75
- Tracking number emailed upon shipment
Return Policy
- 30-day returns on unused parts in original packaging
- Electrical parts (capacitors, contactors, control boards) are final sale once installed
- Email info@nationalhvacparts.com to initiate a return
- Refunds processed within 5-7 business days