Rheem-Ruud 51-42534-19 Motor

The Rheem-Ruud 51-42534-19 Motor is a high-performance 3/4 HP condenser fan motor designed for demanding light commercial and residential HVAC applications. This 48 Nema frame size motor operates on 208-230Vac single phase power, delivering a steady 1075 RPM at 4.2 Amps. Engineered as a Permanent Split Capacitor motor, it requires a dedicated capacitor to maintain optimal torque and efficiency during high-ambient operation. The totally enclosed enclosure and ball bearing construction provide superior protection against moisture and debris infiltration, extending the service life of the internal windings. This unit features a CCW rotation (lead end) and a standard 1/2" x 2 3/4" shaft, making it a drop-in HVAC replacement motor for specific Rheem, Ruud, and WeatherKing condensing units. The shell-band mount configuration ensures a secure fit within the fan shroud, maintaining critical alignment for balanced airflow and reduced vibrational stress on the condenser coil.

• Enhanced Reliability: The ball bearing system handles higher thrust loads and operating temperatures compared to standard sleeve bearings.
• Direct OEM Fit: Engineered specifically for Rheem Ruud 51-42534-19 specifications, ensuring electrical and mechanical compatibility.
• Environmental Protection: The totally enclosed (TEAO) design prevents dust and rain from compromising the motor’s internal components.
• Standardized Frame: The NEMA 48 frame and shell-band mounting allow for seamless integration into existing mounting brackets.

Common HVAC Technical Questions

What capacitor is required for the Rheem 51-42534-19?
As a PSC motor, it requires a run capacitor (typically 10 MFD/370V, but always verify the rating on the specific motor nameplate) to ensure proper starting torque and amp draw.

Can this motor be used in a horizontal or vertical application?
Yes, the ball bearing design allows this motor to be mounted in any orientation without premature bearing wear from gravity-induced shaft load.

How do I verify if this motor replaces my existing unit?
Confirm the 3/4 HP rating, 1075 RPM speed, 48 frame diameter, and CCW rotation. Matching the 51-42534-19 part number is the most accurate way to ensure a correct condenser motor replacement.

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.