Lennox 76K03 Motor

This Lennox 76K03 Blower Motor is a high-performance 3/4 HP OEM replacement engineered for primary air circulation in residential and light commercial HVAC units. Operating at 208/230V on a single-phase 60Hz circuit, this Permanent Split Capacitor (PSC) motor provides three distinct speed taps for precise airflow balancing. As a veteran-preferred part for Lennox furnace blower replacement, it features a standard 48Y frame and a 1/2-inch diameter by 3-inch long shaft, ensuring physical compatibility with existing blower wheels and housings. The 1100 RPM operation is supported by self-aligning sleeve bearings for quiet, continuous duty under air-over cooling conditions. Designed for horizontal mounting using a standard belly band, this CCW lead-end rotation motor integrates seamlessly into 12GCS and 12CHP series packaged units. For technicians performing a Lennox 76K03 motor installation, the internal thermal protection and Class B insulation provide the ruggedness required for high-demand environments. Always ensure a fresh 15 MFD at 370V capacitor is installed to maintain proper torque and efficiency.

• Optimized Airflow Control: Features a 3-speed design to allow for custom balancing of cfm requirements across different ductwork configurations.
• Direct OEM Fitment: Replaces legacy part numbers including Lennox 76K0301, R47475-001, and 47475-001 without mounting modifications.
• Industrial-Grade Build: Utilizes an open enclosure with a 48-frame housing, designed for maximum heat dissipation during continuous-air-over cycles.
• Quiet Operation: Internal sleeve bearings reduce vibration and resonance throughout the blower assembly.

What capacitor is required for the Lennox 76K03?
This motor requires a 15 MFD / 370V run capacitor for proper startup and operation. Using an undersized or worn capacitor can lead to overheating and premature winding failure.

Which way does the Lennox 76K03 rotate?
This unit is a CCWLE (Counter-Clockwise Lead End) rotation motor. Verify your existing fan blade or blower wheel pitch to ensure correct discharge direction before securing the belly band.

Is this motor compatible with 120V systems?
No, the Lennox 76K03 specifications explicitly require a 208/230V single-phase power supply. Applying 120V will prevent the motor from reaching rated RPM and may damage the internal components.

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Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.