Modine 5H0738390004 Fan Blade

When you're servicing a Modine unit heater, getting the exact airflow spec is critical for thermal exchange and motor longevity. This Modine 5H0738390004 Fan Blade is the direct OEM replacement fan blade designed to restore factory-standard cooling and heating performance. Measuring 19 1/4 inch diameter with a precise 22-degree pitch, this 3-blade assembly is engineered for clockwise (CW) rotation and features a 1/2 inch bore for secure mounting on the motor shaft.

For contractors managing legacy systems, this part is the direct replacement for 5H73839-4 and is also identified as Modine part 29213. It is commonly utilized in high-output units such as the Modine PTC135, Modine PD200, and Modine PDP200 power-vented gas-fired heaters. Constructed for durability in commercial and industrial HVACR environments, this aluminum propeller ensures balanced weight distribution to prevent bearing wear on the blower motor while maintaining the static pressure required for optimal heat throw.

• Precise Compatibility: Direct OEM replacement for 5H73839-4 and 29213 ensures a drop-in fit without needing hub modifications.
• Optimized Airflow: The 22-degree blade pitch is specifically calibrated for Modine’s heat exchanger geometry to maximize BTU transfer.
• Durable Construction: High-grade aluminum blades resist corrosion and maintain structural integrity under high-velocity cycles.
• Vibration Reduction: Factory-balanced 3-blade design minimizes mechanical resonance, protecting the fan motor and entire unit housing.

What models are compatible with the 5H0738390004 fan blade?
This blade is primarily designed for Modine PD200, PDP200, and PTC135 unit heaters. Always verify the part number on your existing unit's rating plate to ensure the 19.25-inch diameter fits your specific cabinet size.

Does this fan blade include the set screw?
Yes, this Modine fan blade typically comes with the necessary set screw for securing the 1/2" bore hub to the motor shaft, ensuring a slip-free clockwise rotation.

How do I know if I need to replace my fan blade or the motor?
If you notice unusual vibration or noise without visible damage to the 5H0738390004 blades, the motor bearings may be failing. However, any bending, pitting, or stress fractures on the aluminum blades necessitate an immediate replacement to prevent catastrophic failure of the unit’s airflow system.

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.