Trane MOT18731 Motor

Ensure reliable condenser performance with the Trane MOT18731 Motor, a heavy-duty 1/4 HP condenser fan motor engineered for demanding HVACR applications. As a direct replacement for MOT8895 and MOT8804, this OEM component maintains system integrity without the need for mounting modifications. Operating at 1075 RPM on a 200/230V single-phase circuit, this 42 frame motor utilizes a Permanent Split Capacitor (PSC) design to optimize energy consumption and torque delivery. Built with a Totally Enclosed Air Over (TEAO) enclosure and Class F insulation, it is designed to withstand the thermal stress of outdoor environments. The counter-clockwise (CCW) rotation and 0.5-inch shaft diameter ensure precise compatibility with standard Trane and American Standard fan blades. Professional installation typically requires a 7.5 MFD/370V run capacitor to achieve peak operational efficiency and prevent amperage spikes.

Key Benefits

• Direct OEM Compatibility: Verified 1:1 drop-in replacement for MOT8895, ensuring electrical and physical alignment.
• Rugged TEAO Construction: The totally enclosed housing protects internal windings from debris, moisture, and extreme outdoor temperatures.
• Standardized 42 Frame: Provides a universal mounting footprint for residential and light commercial condenser units.
• Optimized Airflow: Precision-rated at 1075 RPM to provide consistent heat rejection across the condenser coils.
• High Thermal Tolerance: Integrated Class F insulation prevents premature winding failure during high-static operating conditions.

Common Questions

Is a new capacitor required with this motor?
Yes, it is standard trade practice to replace the run capacitor when installing a new Trane replacement motor. This unit typically requires a 7.5 MFD/370V capacitor to operate within factory specifications.

Will this motor replace the MOT08804 model?
Yes, the MOT18731 is the official superseding part number for both MOT8895 and MOT8804, maintaining the same 1075 RPM and 1/4 HP ratings.

What is the rotation direction for this part?
This motor is configured for counter-clockwise (CCW) rotation at the lead end, which is the standard orientation for many Trane condenser fan assemblies.

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.