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The genuine OEM Lennox 67M55 draft inducer motor assembly ships complete with gaskets for a fully sealed installation. This combustion blower pulls exhaust gases through the heat exchanger and vents them safely outdoors, spinning up before ignition to establish the draft that closes the pressure switch and permits the burners to fire. Matched to Lennox furnace specifications, the 67M55 restores proper venting with the correct sealing hardware included.
Common failure symptoms: failure to ignite, grinding or humming at startup, short-cycling, air leaks around a deteriorated gasket, or persistent pressure-switch lockouts. These typically stem from worn bearings, a damaged inducer wheel, hardened gaskets, or a failed motor winding.
Why OEM matters: A proper combustion seal is as critical as the motor itself — a leaking gasket can trip pressure safeties or allow flue gas escape. The OEM 67M55 bundles factory gaskets with a correctly specified motor and wheel, ensuring an airtight, bolt-in fit that keeps your Lennox furnace within its certified safety and efficiency ratings — a complete solution aftermarket kits rarely match.