Rheem-Ruud 51-23102-05 Motor

When you're out in the field and a furnace or air handler blower is dead, the Rheem-Ruud 51-23102-05 Motor is the direct OEM replacement for Rheem, Ruud, and WeatherKing systems that keeps you from chasing universal motor configurations. This is a 1/8 HP Permanent Split Capacitor (PSC) motor designed for 208-230V single-phase applications. Operating at 825 RPM across two speeds, it provides the precise airflow required for specific cabinet designs. It features a standard 48 NEMA frame and an open-air-over (OAO) enclosure to ensure proper heat dissipation during continuous operation.

The 51-23102-05 utilizes a 1/2" x 2 9/16" flat shaft with CCW rotation (opposite shaft end). For mounting, it offers flexibility with shell-band or shell-screw options, making it a drop-in fit for older Protech 51-23101-05 and 51-23103-05 models. With a low 1.4 Amp draw and reliable sleeve bearings, this is a technician’s go-to for ensuring original static pressure specs are met without the noise of cheap aftermarket alternatives. Always verify your 5 MFD / 370 VAC run capacitor is within tolerance, as these motors are sensitive to weak capacitance.

• Direct OEM Fit: Eliminates the need for bracket modifications or shaft trimming in Rheem and Ruud blower assemblies.
• Two-Speed Flexibility: Supports both high-speed cooling and lower-speed heating or fan-only modes for balanced airflow.
• Quiet Sleeve Bearings: Engineered for smooth, low-friction operation in residential and light commercial settings.
• Thermostat Compatibility: Integrated 2-speed leads allow for seamless connection to standard 24V control boards.

• Can I use a 1075 RPM motor to replace this 825 RPM model? No. Increasing RPM will significantly increase the amp draw and can lead to motor failure or excessive noise. Stick to the 825 RPM spec for this housing.
• Does this motor include the capacitor? No, but it requires a 5 MFD / 370V run capacitor. It is standard practice to replace the capacitor whenever installing a new blower motor to prevent premature winding failure.
• Is this motor reversible? This specific model is factory-set for CCW rotation. Always verify the rotation of your blower wheel before installation.

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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.