When viewing the blade from the discharge side (or facing the hub)

If you are troubleshooting a furnace not heating or encountering a frequent flame loss error

replacing the complete 100233487 assembly is recommended to ensure a proper seal at the blower flange and to avoid reusing a degraded impeller or housing

the WHL0324 is a critical OEM replacement part that maintains the balanced performance required to prevent vibration and premature motor wear in residential and light commercial equipment

it ensures a leak-proof interface that maintains proper combustion pressure and prevents hazardous flue gas bypass

Trane MOT19008 Motor 319825-402 When viewing the blade fromThe Trane MOT19008 Motor is a heavy duty 460V industrial motor engineered for high demand HVAC and commercial air handling applications. Delivering 0. 8 HP at 1075 RPM, this 2 speed motor provides the torque and operational flexibility required for precision climate control systems. Built on a standard NEMA frame, it features a 0. 5 inch shaft diameter and a 3. 5 inch shaft length, ensuring compatibility with a wide range of fan and blower assemblies