Trane Blower Motor MOT18981

Trane MOT18981 Indoor Blower Motor | 3/4 HP, 115V, 1100 RPM

Restore maximum airflow velocity and original system efficiency to your air handler or furnace with the genuine Trane MOT18981 Indoor Blower Motor. This high-performance, Factory Authorized Part is a critical air-movement component engineered specifically for residential gas furnaces, air handlers, and packaged climate systems under the Trane and American Standard labels. Optimized to deliver a powerful 3/4 HP output at a smooth 1100 RPM, this motor ensures uniform delivery of conditioned air throughout your building's supply trunks.

As a genuine factory OEM component, the Trane MOT18981 drops cleanly into your existing direct-drive blower wheel housing assembly, maintaining original balance tolerances and eliminating the tedious wiring reconfigurations required by universal aftermarket motors.

Technical Specifications:

  • Model/Part Number: MOT18981
  • Motor Type: Permanent Split Capacitor (PSC) Direct-Drive Motor
  • Horsepower: 3/4 HP
  • Voltage Compatibility: 115 VAC
  • Frequency/Phase: 60 Hz / Single Phase (1 PH)
  • Rotational Speed: 1100 RPM
  • Frame Size: 48 NEMA Frame (48 Frame)
  • Capacitor Requirement: Requires a 20 uF / 370 VAC run capacitor (Sold Separately)

Key Features & Benefits:

  • Genuine Trane OEM Quality: Engineered to match original factory specifications for physical frame dimensions, shaft length, and mounting bolt spacing. This ensures a direct, frustration-free drop-in replacement that perfectly matches your factory fan deck footprint.
  • Quiet and Balanced Airflow: Precision-calibrated internal rotors minimize operational vibration and structural motor hum, preventing low-frequency resonance from traveling through your home's duct network.
  • Heavy-Duty Thermal Protection: Features an integrated automatic thermal overload reset switch that instantly cuts power if the motor drops in speed or overheats, protecting internal windings from permanent failure.
  • Multi-Speed Staging: Built with standard multi-speed taps to seamlessly integrate with your existing integrated furnace control board, preserving your system's original heating and cooling airflow profiles.

Compatibility & Cross-Reference

The MOT18981 indoor blower motor serves as the official, factory-authorized update for legacy or discontinued configurations. It is a verified direct fit and replacement for:

  • Legacy Part Numbers: Trane / American Standard P/N MOT04723.
  • Equipment Applications: Widely utilized in high-efficiency residential gas furnaces, modular electric air handlers, and split-system heat pump fan coils.

Why Buy From Shortys HVAC Supplies?

At Shortys HVAC, we focus strictly on Original Equipment Manufacturer (OEM) components because alternative generic motors can alter vital static pressure curves or carry different amp draws. Buying an authentic factory part guarantees your heating and cooling equipment preserves its strict safety certifications, peak energy efficiency metrics, and active manufacturer warranty lines.

Shipping Information: We provide fast, competitive shipping rates across the continental United States, ensuring your critical electrical and air-movement parts arrive quickly to get your climate control back up and running.

$1,099.00

Add to Cart:
  • Model: MOT18981
  • Manufactured by: Trane
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