
Lennox 52M31 Motor
The Lennox 52M31 Blower Motor is a heavy-duty, 3-speed replacement motor engineered to restore factory-spec airflow in Lennox, Armstrong, and Ducane residential air handlers and furnaces. As a 1/2 HP direct drive blower motor, it operates on 208-230V single-phase power at 1100 RPM, providing the high-torque performance required to overcome static pressure in complex ductwork. Built with a 48Y frame (5.6-inch diameter) and an Open Drip Proof (ODP) enclosure, this HVAC blower motor ensures optimal heat dissipation during long run cycles, preventing the common overheating issues seen with generic aftermarket alternatives.
For technicians performing a Lennox furnace motor replacement, the 52M31 offers a seamless fit with its standard 5.7" diameter and multi-tap wiring configuration. The three-speed blower motor design allows for precise CFM adjustments to match the original system design for both heating and cooling stages. Whether you are addressing a failed PSC motor or performing preventative maintenance on a 20462204 assembly, this genuine OEM part maintains the structural integrity and electrical efficiency of the unit without the need for mounting modifications or bracket fabrication.
Key Benefits:- OEM Compatibility: Exact drop-in replacement for Lennox part numbers 52M31, 52M3101, and 20462204, ensuring proper shaft alignment and belly band mounting.
- Multi-Speed Flexibility: Features 3 distinct speed taps to optimize airflow for varied seasonal demand and system static pressure.
- Industrial Build Quality: High-grade internal windings and 1100 RPM blower motor rating provide consistent air delivery and reduced vibration.
- Enhanced Efficiency: Matches original amperage draws (approx. 3.4 Amps) to protect integrated control boards and existing capacitors.
- Is a new capacitor required? It is best professional practice to replace the run capacitor whenever installing a new 1/2 HP blower motor to ensure proper starting torque and motor longevity.
- Can this motor be used for 115V applications? No, this is a 208-230V single phase HVAC motor. Connecting it to a 115V circuit will result in failure and potential damage to the furnace control board.
- Will this fix a furnace that is short-cycling? If the system is tripping the high-limit switch due to low airflow from a seized motor, replacing the Lennox 52M31 will restore the necessary CFM to keep the heat exchanger cool.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Original: $456.45
-65%$456.45
$159.76Lennox 52M31 Motor
The Lennox 52M31 Blower Motor is a heavy-duty, 3-speed replacement motor engineered to restore factory-spec airflow in Lennox, Armstrong, and Ducane residential air handlers and furnaces. As a 1/2 HP direct drive blower motor, it operates on 208-230V single-phase power at 1100 RPM, providing the high-torque performance required to overcome static pressure in complex ductwork. Built with a 48Y frame (5.6-inch diameter) and an Open Drip Proof (ODP) enclosure, this HVAC blower motor ensures optimal heat dissipation during long run cycles, preventing the common overheating issues seen with generic aftermarket alternatives.
For technicians performing a Lennox furnace motor replacement, the 52M31 offers a seamless fit with its standard 5.7" diameter and multi-tap wiring configuration. The three-speed blower motor design allows for precise CFM adjustments to match the original system design for both heating and cooling stages. Whether you are addressing a failed PSC motor or performing preventative maintenance on a 20462204 assembly, this genuine OEM part maintains the structural integrity and electrical efficiency of the unit without the need for mounting modifications or bracket fabrication.
Key Benefits:- OEM Compatibility: Exact drop-in replacement for Lennox part numbers 52M31, 52M3101, and 20462204, ensuring proper shaft alignment and belly band mounting.
- Multi-Speed Flexibility: Features 3 distinct speed taps to optimize airflow for varied seasonal demand and system static pressure.
- Industrial Build Quality: High-grade internal windings and 1100 RPM blower motor rating provide consistent air delivery and reduced vibration.
- Enhanced Efficiency: Matches original amperage draws (approx. 3.4 Amps) to protect integrated control boards and existing capacitors.
- Is a new capacitor required? It is best professional practice to replace the run capacitor whenever installing a new 1/2 HP blower motor to ensure proper starting torque and motor longevity.
- Can this motor be used for 115V applications? No, this is a 208-230V single phase HVAC motor. Connecting it to a 115V circuit will result in failure and potential damage to the furnace control board.
- Will this fix a furnace that is short-cycling? If the system is tripping the high-limit switch due to low airflow from a seized motor, replacing the Lennox 52M31 will restore the necessary CFM to keep the heat exchanger cool.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
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Description
The Lennox 52M31 Blower Motor is a heavy-duty, 3-speed replacement motor engineered to restore factory-spec airflow in Lennox, Armstrong, and Ducane residential air handlers and furnaces. As a 1/2 HP direct drive blower motor, it operates on 208-230V single-phase power at 1100 RPM, providing the high-torque performance required to overcome static pressure in complex ductwork. Built with a 48Y frame (5.6-inch diameter) and an Open Drip Proof (ODP) enclosure, this HVAC blower motor ensures optimal heat dissipation during long run cycles, preventing the common overheating issues seen with generic aftermarket alternatives.
For technicians performing a Lennox furnace motor replacement, the 52M31 offers a seamless fit with its standard 5.7" diameter and multi-tap wiring configuration. The three-speed blower motor design allows for precise CFM adjustments to match the original system design for both heating and cooling stages. Whether you are addressing a failed PSC motor or performing preventative maintenance on a 20462204 assembly, this genuine OEM part maintains the structural integrity and electrical efficiency of the unit without the need for mounting modifications or bracket fabrication.
Key Benefits:- OEM Compatibility: Exact drop-in replacement for Lennox part numbers 52M31, 52M3101, and 20462204, ensuring proper shaft alignment and belly band mounting.
- Multi-Speed Flexibility: Features 3 distinct speed taps to optimize airflow for varied seasonal demand and system static pressure.
- Industrial Build Quality: High-grade internal windings and 1100 RPM blower motor rating provide consistent air delivery and reduced vibration.
- Enhanced Efficiency: Matches original amperage draws (approx. 3.4 Amps) to protect integrated control boards and existing capacitors.
- Is a new capacitor required? It is best professional practice to replace the run capacitor whenever installing a new 1/2 HP blower motor to ensure proper starting torque and motor longevity.
- Can this motor be used for 115V applications? No, this is a 208-230V single phase HVAC motor. Connecting it to a 115V circuit will result in failure and potential damage to the furnace control board.
- Will this fix a furnace that is short-cycling? If the system is tripping the high-limit switch due to low airflow from a seized motor, replacing the Lennox 52M31 will restore the necessary CFM to keep the heat exchanger cool.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.












