Industrial 51146 Flange Mount 12V Heater Motor

Description:

The Unimotor 51-146 Heater Motor is used in automotive and mobile HVAC systems to circulate air through heater assemblies for cabin heating applications. Commonly installed in auxiliary heaters, commercial vehicles, specialty equipment, and transportation systems requiring reliable 12V blower motor performance. Maintenance teams and vehicle technicians use this part for replacement and preventive maintenance to restore proper airflow and ensure dependable heating system operation.

Applications:

The Unimotor 51-146 Heater Motor is designed for heating systems requiring a flange-mounted 12V blower motor with permanent magnet construction. It is commonly utilized in commercial vehicles, utility equipment, auxiliary heating units, and mobile HVAC systems to maintain consistent airflow and support passenger comfort.

Technical Specifications:

• Manufacturer Part Number (MPN): 51-146
• Product Type: Heater Motor
• Brand: Unimotor
• Function: Drives the blower fan in vehicle heating systems
• Equipment Type: HVAC Blower Motor
• Voltage Rating: 12 VDC
• Motor Type: Permanent Magnet Motor
• Mounting Style: Flange Mount
• Rotation: Clockwise (CW)
• Overall Length: 4-3/4 in.
• Motor Diameter: 3-1/4 in.
• Shaft Diameter: 5/16 in.
• Shaft Length: 1-1/8 in.
• Mounting Plate Diameter: 6-3/4 in.
• Application: Cabin heating and air circulation systems
• Installation Type: Direct replacement component
• Application Environment: Commercial vehicles, specialty equipment, and mobile HVAC systems
• Maintenance Purpose: Restores proper blower performance and heating efficiency

Common Replacements:

• Unimotor 51-145 Heater Motor
• Unimotor 51-141 Heater Motor
• Four Seasons UniMotor 35550 Blower Motor