D366 Regal Rexnord - Fasco dual-shaft 3-1/8" blower motor 1/14 HP 115V 2-speed, 1550RPM

The Fasco D366 is a 3.3" diameter, dual-shaft, shaded-pole blower motor designed for room air conditioners, fan-coil units, double-blower assemblies, and HVAC ventilation equipment. Operating at 1/14 HP, 115V, and 1550 RPM, this motor provides smooth, reliable airflow for cooling and air-moving applications.

This motor features two shafts, allowing it to drive dual blowers simultaneously. It includes automatic overload protection, continuous-duty air-over operation, and is built to OEM standards under the Regal Rexnord Fasco line.

product data:

• 1/14 HP, 115V, 1550 RPM, 2-speed, dual-shaft configuration.

• 3.3" diameter, OEM-quality blower motor, engineered for HVAC ventilation.

• double-shaft, continuous duty, automatic overload, room air conditioning & heater applications.

• 1/14–1/21 HP range, 115V, 1500–1550 RPM, 2-speed, 3.3" OAO motor.

Cross-Reference (Technician Binder Card Format)

Direct OEM

• D366 — Fasco / Regal Rexnord Dual-Shaft Motor

Replaces / Interchange

(Same motor family, same specs)

• D366 (Regal Rexnord OEM)

• “Fasco 3.3" Double Shaft Motor 115V 1550 RPM” (Jackson Systems)

• “Regal Beloit D366” (Walmart listing)

Common Applications

• Window air conditioners

• Fan-coil units

• Double-blower assemblies

• Room AC units

• Heaters

• Ventilation equipment

• Air movers requiring dual-shaft drive

Technician Notes

• Horsepower: 1/14 HP

• Voltage: 115V

• Speed: 1550 RPM

• Speeds: 2-speed

• Diameter: 3.3"

• Shafts: Dual (double-shaft)

• Duty: Continuous duty, air-over

• Protection: Automatic overload

• Rotation: Determined by viewing shaft end (per Walmart listing)

• Construction: Open air-over (OAO), shaded-pole

• Use Cases: Double blowers, room AC, heaters, fan-coil units

Replacement Indicators:

• Weak airflow

• Motor hums but won’t start

• Excessive noise or vibration

• Overheating or overload trips

• Shaft wobble or bearing wear

Direct replacement for Day & Night, Payne, Williams and Coleman. Open design, thermally protected, sleeve bearing for vertical or horizontal operation Non-reversible, two flatted shafts 5/16" diameter. HP 1/20-1/30 Volts 115 RPM/Speeds 1550(2)
F/L Amps 2.7-1.4 Shaft Diameter 5/16" Shaft Length 4" Diameter 3-1/8"

Replace: 359