Trane MOT21573 Constant Torque HVAC Blower Motor 0.75 HP 1050 RPM

The Trane MOT21573 is a genuine OEM constant torque blower motor rated at 0.75 horsepower (3/4 HP) and 1050 RPM, engineered specifically for use in Trane residential and light commercial HVAC air handling systems. Constant torque (X-13 / ECM-type) motors maintain consistent torque output across varying static pressure conditions, delivering more reliable airflow and improved energy efficiency compared to standard PSC motors.

Key Features:

• 0.75 HP (3/4 HP) output rating for reliable blower performance
• 1050 RPM rated speed for optimized airflow delivery
• Constant torque operation — maintains steady torque regardless of system static pressure changes
• OEM Trane replacement part — designed to meet original equipment specifications for fit and performance
• Ball bearing construction for long service life and reduced maintenance
• Overload protected to guard against thermal damage during demanding operation
• Single-phase electrical configuration compatible with standard HVAC systems
• Designed for use in air handlers, furnaces, and fan coil units requiring constant torque motors

The MOT21573 is a direct OEM replacement that ensures proper fit and reliable performance in Trane systems. Constant torque motors are known for their ability to adapt to varying duct resistance, making them ideal for zoned systems and applications where static pressure fluctuates. Always verify your unit's model and serial number before ordering to confirm fitment.