Modine 5H0586210004 Fan Blade

When you're servicing a unit heater and the blower has lost its balance or suffered blade deformation, a direct OEM replacement is the only way to restore factory-spec airflow. The Modine 5H0586210004 Fan Blade is engineered precisely for Modine unit heaters, providing a high-performance 4-blade configuration that maintains system static pressure. This 12-inch diameter component features a 20-degree pitch, which is critical for moving the correct CFM without overloading the fan motor. It is designed with a 1/2-inch bore for a secure fit on standard motor shafts and operates with a clockwise (CW) rotation. As the direct replacement for the legacy 5H58621-4, this part ensures HVAC system compatibility and eliminates the vibration issues common with generic "will-fit" fan blades. Whether you are performing routine unit heater maintenance or an emergency industrial air systems repair, using this HVAC replacement part ensures the heat exchanger receives adequate air volume to prevent high-limit trips.

Key Benefits:

• Exact OEM Specifications: Direct replacement for 5H58621-4 ensures perfect balance and motor load compatibility.
• Optimized Airflow: The 20-degree blade angle is specifically pitched for Modine units to maximize heat transfer efficiency.
• Industrial-Grade Build: Durable construction resists the flex and fatigue often seen in high-cycle commercial heating applications.
• Reduced Mechanical Stress: Precision balancing reduces bearing wear on the blower motor, extending the life of the entire drive assembly.

Common Questions:

Is this fan blade compatible with Modine Hot Dawg or HE series units?
Yes, this blade is frequently used in Modine HE100, HE125, and HE150 models. Always verify your specific model and serial number to ensure the 12-inch diameter and 1/2-inch bore match your current assembly.

Does this include the set screw for shaft mounting?
Most OEM fan blades include the necessary hub and set screw for installation on a 1/2-inch shaft. We recommend checking the condition of your motor shaft for burrs before sliding the new blade into place.

Can I use this for a counter-clockwise (CCW) motor application?
No, this specific part is designed for clockwise (CW) rotation. Installing a CW blade on a CCW motor will result in significantly reduced airflow and potential system overheating.

This item is not eligible for free shipping.

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.