Sterling J34R06999-101 Fan Blade

When you're dealing with a Sterling J34R06999-101 Fan Blade, precision in specs is everything to avoid premature motor burnout or excessive vibration. This 16-inch diameter propeller fan is a genuine OEM replacement fan blade engineered specifically for Sterling and Beacon Morris unit heaters, including the HSB and HBB series. Featuring a 4-blade aluminum construction, this component is built for lightweight durability and efficient airflow. The 20-degree pitch and CW (clockwise) rotation are calibrated for specific static pressure requirements, ensuring the unit moves the correct CFM without overloading the 3/8 inch bore motor shaft.

Field technicians should verify the Air Drive 4P16CW20 cross-reference if the original label is degraded. This part is commonly found in HSB09611 models and Mestek-manufactured unit heaters. Because this is a direct drive heater fan, ensuring the set screw is seated on the flat of the shaft is critical for high-RPM stability. Using an aluminum HVAC fan blade like this one helps minimize the load on the motor bearings compared to heavier galvanized steel alternatives. Always confirm your model and serial number before installation, as this unit is built to strict industrial tolerances.

• Sterling HVAC Compatibility: Verified fit for Sterling and Beacon Morris HSB/HBB series unit heaters.
• Optimized Airflow: Precision-stamped 20 degree pitch provides the specific static pressure needed for gas-fired heating units.
• Durable Construction: High-grade aluminum blades resist corrosion and maintain balance during long duty cycles.
• Standardized Bore: The 3/8" bore fits standard direct-drive fan motors used in commercial HVAC units.
• OEM Reliability: Replaces part numbers 11J34R06999-101 and T000339 with exact factory dimensions.

Common Questions & Critical Info

Which direction should this fan rotate?
This is a Clockwise (CW) rotation blade. When looking at the discharge side (the air blowing toward you), the blades must rotate clockwise to function correctly.

Can I use this on a 1/2 inch motor shaft?
No. This blade has a fixed 3/8" bore. Attempting to modify the hub or use it on a larger shaft will compromise the balance and safety of the assembly.

How do I confirm this fits my Sterling unit heater?
Check your unit's data plate. This part is typically specified for 96,000 BTU models (like the HSB09611) built both before and after June 2007. Match the J34R06999-101 part number specifically.

Item is Non Cancelable / Non Returnable

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.