Description
The US Motors 4742 is a precision-engineered permanent split capacitor (PSC) blower motor designed for dependable performance in residential and light commercial HVAC air-handling applications. Built to exacting standards, this motor delivers consistent airflow and long service life in demanding environments.
Electrical Specifications
- Voltage: 115V AC
- Phase: Single Phase
- Horsepower: 1/6 HP
- Amperage: 2.7 Amps
- Motor Type: Permanent Split Capacitor (PSC)
Mechanical Specifications
- Speed: 1650 RPM
- NEMA Frame Size: 42YZ
- Shaft Diameter: 1/2″
- Rotation: Clockwise (CW), Lead End
- Mounting Style: Stud Mount
- Bearing Type: Ball Bearing
- Enclosure Type: Open Air Over (OAO)
Key Features & Benefits
- Permanent split capacitor design provides smooth, efficient motor starting and running performance
- Ball bearing construction ensures long service life and reduced maintenance requirements
- Open air over enclosure promotes effective motor cooling during continuous operation
- Stud mount configuration simplifies installation and secure positioning within blower assemblies
- 42YZ NEMA frame ensures compatibility with a wide range of OEM and replacement blower applications
- 1/2″ shaft diameter accommodates standard blower wheel hubs for easy drop-in replacement
Application
The US Motors 4742 is ideally suited as a direct replacement or OEM blower motor in furnaces, air handlers, and fan coil units. Its 42YZ NEMA frame and stud mount design make it a versatile solution for HVAC technicians performing motor replacements in the field.







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