Lennox 51H75 Fan Motor

The Lennox 51H75 is a high-performance 1/4 HP condenser fan motor designed specifically for commercial and high-voltage residential HVAC applications. Engineered for 460V single-phase operation, this PSC (Permanent Split Capacitor) motor is a direct OEM replacement fan motor for the 51H7501, ensuring seamless mechanical and electrical compatibility with Lennox condensing units. Operating at 825 RPM with a 1.1A full-load draw, it provides the precise airflow required to maintain optimal head pressure and heat transfer across the condenser coils. Built with ball bearings and a 48-frame housing, this motor is designed to withstand the rigorous demands of continuous-duty cycles in harsh outdoor environments. The CCWLE (Counter Clockwise Lead End) rotation and standard 1/2-inch shaft diameter allow for a straightforward drop-in installation, reducing labor time for contractors in the field. When replacing this unit, verifying the 7 MFD 370 VAC capacitor is essential to ensure peak torque and electrical efficiency.

• Exact OEM Compatibility: Identical to Lennox 51H7501, preventing mounting and wiring issues common with "universal" alternatives.
• Industrial-Grade Build: Features ball bearings for extended service life and Class B insulation for thermal protection.
• Optimized Performance: Maintains original system SEER/EER ratings by providing the factory-specified 825 RPM airflow.
• Durable Construction: Heavy-duty 48-frame design provides superior heat dissipation during peak summer loads.

Is the 51H75 the same as the 51H7501?
Yes, the Lennox 51H75 and 51H7501 are electrically and mechanically identical parts used in the same Lennox equipment models.

Does this motor include the run capacitor?
This motor requires a 7 MFD / 370V capacitor for proper operation. We strongly recommend installing a new capacitor alongside this 460V fan motor to ensure maximum performance.

What is the direction of rotation?
This motor is rated for CCWLE (Counter Clockwise Lead End) rotation, which is the standard configuration for many Lennox commercial condensers.

This item is not eligible for free shipping.

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.