Lennox 43G38 Fan Blade

When you are on a service call for a Lennox unit and find a bent or corroded blade, the Lennox 43G38 Fan Blade (also identified by part number 43G3801) is the exact OEM condenser fan replacement required to restore factory-spec airflow. This 4-blade assembly features a 22-inch diameter and a precise 28-degree pitch, engineered to maintain the static pressure and CFM balance of the outdoor section. Designed with a 1/2 inch bore diameter and a fixed hub on the discharge side, it ensures a secure, vibration-free fit on the motor shaft. The clockwise rotation (CW facing discharge) is critical for proper heat rejection in Lennox HVAC systems, preventing compressor overheating and high-head pressure issues. Fabricated from high-strength materials, this HVAC blower component provides the structural integrity needed for high-duty cycle operation in both residential and light commercial condenser units, making it a reliable direct-fit fan blade for professional contractors.

Key Benefits

• Precision Balanced: Factory-set 28-degree pitch and 4-blade configuration reduce mechanical stress on the motor and minimize operational noise.
• Direct OEM Match: Built to the exact specifications of part number 43G3801, ensuring zero-modification installation on compatible 1/2-inch shafts.
• Optimized Heat Transfer: Maintain condenser airflow efficiency to keep system efficiency high and discharge temperatures within safe limits.
• Durable Construction: Engineered to withstand harsh outdoor environmental factors, including heavy moisture and temperature fluctuations.

Common Questions

Is the 43G38 compatible with the 43G3801?
Yes, the 43G38 is technically identical to 43G3801. They are the same part number used interchangeably across Lennox technical data sheets and catalogs.

How do I verify the rotation for this blade?
This blade is rated for Clockwise (CW) rotation when viewing the unit from the discharge side (the side the air is blowing toward). Always verify the motor's lead wires and rotation before securing the hub.

What is the bore size for the motor shaft?
This Lennox replacement fan blade features a standard 1/2 inch bore, fitting most standard residential condenser motor shafts used in Lennox, Armstrong, and Ducane equipment.

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.