Trane American Standard MOT18924 OEM HVAC Replacement Motor

The Trane American Standard MOT18924 is an OEM replacement motor for compatible Trane and American Standard HVAC equipment.

This motor is designed to provide dependable mechanical operation for compatible HVAC fan assemblies. Featuring a 1/8 HP rating, 1650 RPM, 200–230 VAC, single-phase operation, and 48-frame construction, the MOT18924 is intended for equipment requiring these specific motor characteristics.

For homeowners, an HVAC motor powers a fan or blower that helps move air through the heating or cooling system. A failing motor can cause reduced airflow, unusual noises, overheating, or equipment shutdown.

Before ordering, verify the original motor part number and confirm the replacement meets the equipment manufacturer's requirements.

Key Features & Function

• Brand: Trane / American Standard
• Manufacturer Part Number: MOT18924
• Product Type: HVAC Replacement Motor
• Horsepower: 1/8 HP
• Operating Voltage: 200–230 VAC
• Rated Speed: 1650 RPM
• Electrical Phase: Single Phase
• Frequency: 60 Hz
• Frame Size: 48
• Motor Type: PSC (distributor-listed)
• Rotation: CCW (verify viewing end)
• Run Capacitor: 5 MFD / 370 VAC (distributor-listed; verify nameplate)
• Designed for compatible Trane and American Standard HVAC equipment

Product Details & Specifications

Specification Note: Rotation, capacitor rating, bearing type, shaft dimensions, and mounting configuration should be confirmed against the original motor and manufacturer documentation.

HVAC Depot Pro Tip

Before replacing the Trane MOT18924, confirm the original motor's voltage, horsepower, RPM, rotation, capacitor rating, shaft dimensions, and mounting configuration.

A failing HVAC motor may cause poor airflow, overheating, or system shutdown. Before replacing the motor, a qualified HVAC technician should inspect the following:

• Incoming electrical supply
• Motor run capacitor
• Fan blade condition and alignment
• Motor shaft and bearings
• Wiring and electrical connections
• Motor rotation and operating amperage

HVAC Depot Pro Tip: Do not substitute a motor based on horsepower and voltage alone. Incorrect RPM, rotation, or capacitor requirements can affect airflow and equipment performance.

Safety Warning: Disconnect all electrical power before servicing HVAC equipment. Capacitors may retain a hazardous electrical charge after power is removed. Professional installation is recommended.

Equipment / Model Compatibility

The Trane MOT18924 is intended for select Trane and American Standard HVAC systems requiring this OEM replacement motor.

Exact compatible equipment model numbers have not been independently verified.

Before purchasing, confirm:

• Complete HVAC equipment model number
• Equipment serial number
• Original motor part number
• 1/8 HP motor requirement
• 200–230 VAC operating voltage
• 1650 RPM rated speed
• 48-frame motor dimensions
• Rotation and shaft specifications
• Run capacitor requirements
• Mounting configuration

Compatibility Notice: MOT18924 is not a universal replacement motor. Confirm manufacturer-approved compatibility before ordering.