Original Rheem Blower Motor 51-23012-31

Rheem / Ruud 51-23012-31 Multi-Speed Indoor Blower Motor | 1/2 HP, 120V

Restore stable, high-volume airflow, correct static pressure loops, and precise heating or cooling distribution to your ductwork with the genuine Rheem 51-23012-31 Indoor Blower Motor. This industrial-grade Permanent Split Capacitor (PSC) motor is an authentic Factory Authorized Part designed for residential upflow, downflow, and horizontal gas furnaces, air handlers, and modular fan coils under the Rheem and Ruud brand families. Operating on standard 120 VAC single-phase power, this robust 1/2 HP motor features a flexible 3-speed configuration calibrated to run at a maximum 1075 RPM, ensuring uniform heat exchange across your furnace cells or evaporator coil grids.

As a genuine factory original replacement, this Protech service motor is precision-wound and dynamically balanced straight from the production line. This eliminates the intrusive chassis harmonics, bearing groan, and shaft wobble frequently encountered with low-grade universal aftermarket motors.

Technical Specifications:

  • Model/Part Number: 51-23012-31 (Also written as 512301231)
  • Horsepower: 1/2 HP
  • Rotational Velocity: 1075 RPM Max
  • Number of Speeds: 3 Speed Taps (High, Medium, Low field configurations)
  • Voltage Compatibility: 120 VAC
  • Current Draw: 9.8 Full Load Amps (FLA)
  • Frequency / Phase: 60 Hz / Single Phase (1 PH)
  • Motor Frame Sizing: NEMA 48 Frame (5-5/8" Body Diameter)
  • Motor Type: Permanent Split Capacitor (PSC)
  • Enclosure Profile: Open Air-Over (OAO) Ventilation

Key Features & Benefits:

  • Genuine Protech OEM Engineering: Fabricated to the exact mechanical and electrical blueprints mandated by Rheem engineering, ensuring the motor leads match your factory wiring diagrams perfectly for a hassle-free drop-in installation.
  • Open Air-Over (OAO) Thermal Management: Engineered with precise cooling slots that allow the system's return air loop to continuously pass over the internal motor core, preventing winding overheating and extending insulation life.
  • Heavy-Duty Industrial Bearings: Built with robust internal lubrication wells to ensure a low coefficient of friction and near-silent operation across all three speed taps.
  • Standard 48-Frame Form Factor: Features a standard 5-5/8 inch diameter casing that slides seamlessly into original Rheem/Ruud direct-drive blower cradles, torsion flex mounts, or belly-band bracket housings without sheet metal alterations.

Why Buy From Shortys HVAC Supplies?

At Shortys HVAC, we deal strictly in Original Equipment Manufacturer (OEM) factory-authorized parts because your indoor blower is the hardworking heart of your climate system. Attempting to swap a high-amp 9.8 FLA factory motor with a generic multi-fit motor that draws lower amperage can severely underperform against high-duct static pressure, causing your furnace to quickly trip on its high-limit safety switches or your A/C coil to rapidly freeze into a block of ice. Installing an authentic part preserves your equipment's original AHRI energy efficiency ratings, safety listings, and active manufacturer warranties.

Shipping Information: This item qualifies for our fast, secure freight logistics across the continental United States only. Our warehouse team cradles each motor securely in reinforced foam-molded packaging to guarantee it arrives with a perfectly straight, true shaft ready for immediate installation.

$569.00

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  • Model: 51-23012-31
  • Manufactured by: Rheem
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