Trane Blower Motor MOT18978

Trane MOT18978 Indoor Blower Motor | 1/2 HP, 115V, 1375 RPM

Restore factory-spec airflow, optimal static pressure, and quiet indoor comfort to your furnace or air handler with the genuine Trane MOT18978 Indoor Blower Motor. Manufactured by Genteq (formerly GE Industrial), this heavy-duty Permanent Split Capacitor (PSC) motor is an authentic Factory Authorized Part designed for residential and light commercial gas furnaces, hydronic air handlers, and split-system cooling packages under the Trane and American Standard brand families. Operating on standard 115 VAC single-phase power, this robust 1/2 HP motor features multi-speed taps calibrated up to 1375 RPM, ensuring uniform heat exchange across your furnace cell panels or evaporator coil grids.

As a genuine factory original replacement, the MOT18978 comes balanced directly from the manufacturer to eliminate the structural chassis harmonics, bearing whine, and loose shaft tolerances frequently encountered with universal aftermarket motors.

Technical Specifications:

  • Model/Part Number: MOT18978 (Directly supersedes and replaces legacy P/N MOT12767)
  • Manufacturer Model: Genteq / GE 5KCP39KGN691AS
  • Horsepower: 1/2 HP
  • Rotational Velocity: 1375 RPM (Multi-Speed Taps)
  • Voltage Compatibility: 115 VAC
  • Current Draw: 9.30 Full Load Amps (FLA)
  • Frequency / Phase: 60 Hz / Single Phase (1 PH)
  • Motor Frame / Type: NEMA 48 Frame (5-5/8" Body Diameter) / Permanent Split Capacitor (PSC)

Key Features & Benefits:

  • Genuine Genteq Engineering: Built by the industry's leading OEM air-movement specialist. Features precision-wound copper magnet wire matrices designed to handle continuous runtime during peak seasonal demands.
  • Direct Drop-In Sizing: Specifically engineered to slip directly into standard Trane/American Standard motor mount rings and belly-band brackets, preventing the common sheet-metal alterations required by generic motors.
  • Optimized Thermal Dissipation: The open air-over (OAO) ventilation slots allow the system’s return air loop to continuously cool the motor core, significantly extending the life of the internal winding insulation.

Equipment Compatibility & Application

The MOT18978 serves as the current official factory-authorized solution for a wide range of compact and high-efficiency upflow, downflow, and horizontal gas furnaces. It is a verified direct fit for:

  • Legacy Factory Part Numbers: Trane / American Standard MOT12767, MOT-12767.
  • OEM Model Identification: Genteq 5KCP39KGN691AS.

Why Buy From Shortys HVAC Supplies?

At Shortys HVAC, we deal strictly in Original Equipment Manufacturer (OEM) components because exact performance specs dictate whole-system reliability. Substituting a 9.30-amp factory motor with an under-spec or over-spec universal alternative can overload control boards, skew the heat rise profile across your heat exchanger, or dramatically drop your system's CFM airflow. Buying authentic parts ensures your equipment maintains its factory-certified efficiency, electrical ratings, and safety listings.

Shipping Information: We provide fast, competitive shipping rates across the continental United States, packaging your heavy electric motors with specialized cradles so they arrive straight, true, and ready for the field.

$542.00

Add to Cart:
  • Model: MOT18978
  • Manufactured by: Trane
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