Key Benefits Precise Compatibility: Direct OEM replacement for 5H73839-4 and 29213 ensures a drop-in fit without needing hub modifications

it handles high-pressure refrigerants like R-410A without breaking a sweat

If it lists UL14 and requires counter-clockwise rotation with a round shaft extension

When troubleshooting heating cycles

Modine 5H0639800004 Fan Blade 320819-301 Key Benefits Precise Compatibility: DirectThe Modine 5H0639800004 Fan Blade is a critical OEM replacement part designed for high performance airflow management in hydronic unit heaters and industrial HVAC systems. Engineered for precise balance and structural integrity, this axial fan blade ensures optimal heat dissipation by maintaining consistent CFM output across the heat exchanger. For contractors and technicians, replacing a pitched or vibrating blade with this genuine Modine