The 74K77 is an OEM replacement inducer motor assembly for Lennox furnace units.  The assembly includes an inducer motor with a 1/4" shaft, a blower wheel, and a blower housing.  This single-phase motor runs on 208-230V, 1/30 hp, and has a maximum rotation speed of 3000 RPM.   The motor shaft turns in a clockwise lead end rotation.

A draft inducer motor assembly is a vital component of your furnace which is mainly used in commercial and residential applications.  As soon as the furnace is turned on, this device activates to prevent any residual gases from entering the ventilation system by pushing air into the ductwork until it reaches the outside.  This process also helps in providing adequate oxygen for the furnace to run efficiently.

Add to your purchase the Lennox 46K90 Gasket for 74K77.

The 74K77 replaces the following Model Number:
 

See below the compatible Lennox Gas Packaged Units:
 

10GCS024X-50 10GCS030X-50 10GCS036-100 10GCS042-75 10GCS048-100 10GCS048X-125 10GCS060-150 10GCS024X-75 10GCS030X-75 10GCS036X-50 10GCS042-100 10GCS048-125 10GCS048X-150 10GCS060X-100 10GCS024-50 10GCS030-50 10GCS036-50 12GCS024-75 12GCS030-75 12GCS024-50 12GCS030-50

12GCS030X-50 12GCS036-100 12GCS042-75 12GCS048-100 12GCS060-100 13GEP24050ALP 13GEP36100AP 13GEP60125AP GCS26-036-50 GCS26-042-100 GCS26-060-125 GCS26X-036-50 GCS26X-042-100 GCS26X-060-125 GCS29-036-50 GCS29-042-100 GCS29-060-100 GCS29X-024-75 GCS29X-036-100 GCS29X-048-125 GCS29X-060-150

12GCS030X-75 12GCS036X-50 12GCS042-100 12GCS048-125 12GCS060-125 13GEP30050ALP 13GEP42075ALP GCS26-024-50 GCS26-036-75 GCS26-042-100 GCS26X-024-50 GCS26X-036-75 GCS26X-048-100 GCS29-024-50 GCS29-036-75 GCS29-048-100 GCS29-060-125 GCS29X-030-75 GCS29X-042-75 GCS29X-048-150 GCS29X-060-100

12GCS036-50 12GCS036X-75 12GCS042X-75 12GCS048X-100 12GCS060X-100 13GEP30075ALP 13GEP48100ALP GCS26-024-75 GCS26-036-100 GCS26-042-125 GCS26X-024-75 GCS26X-036-100 GCS26X-048-125 GCS29-024-75 GCS29-036-100 GCS29-048-125 GCS29-060-150 GCS29X-036-50 GCS29X-042-100 GCS29X-060-125 GCS29X-060-125

12GCS036-75 12GCS036X-100 12GCS042X-100 12GCS048X-125 12GCS060X-125 13GEP36075ALP 13GEP60100ALP GCS26-030-75 GCS26-042-75 GCS26-060-100 GCS26X-030-75 GCS26X-042-75 GCS26X-060-100 GCS29-030-75 GCS29-042-75 GCS29-048-150 GCS29X-024-50 GCS29X-036-75 GCS29X-048-100 12GCS024X-75 12GCS024X-50

10GCS036X-75 10GCS042X-75 10GCS048-150 10GCS060-100 10GCS060X-125 10GCS024-75 10GCS030-75 10GCS036-75 10GCS036X-100 10GCS042X-100 10GCS048X-100 10GCS060-125 10GCS060X-150