As a specialized gas furnace replacement part

The NEMA 4 rating indicates the coil is protected against windblown dust

using the 73K38 ensures the repair meets original manufacturer specifications

swapping in this Heil Quaker furnace part is the standard professional fix

It must be mounted vertically with the system connection at the bottom to ensure the ball check functions correctly and prevents water-logging

Lennox 13H37 Motor THPU32HP7Y As a specialized gas furnaceThe Lennox 13H37 blower motor is a genuine OEM 1 3 HP replacement motor designed for high performance air handling in specific Lennox residential and commercial units. Engineering for 208 230V single phase operation at 1075 RPM, this 4 speed induction motor provides the torque necessary to maintain static pressure across various duct configurations. As a 48Y frame motor with a 1 2 inch x 3 inch shaft, it ensures a precise fit for older high efficiency