The Modine 5H71838-1 Power Vent Blower Wheel is an original equipment manufacturer (OEM) replacement component designed for select Modine unit heaters. It operates by rotating its curved blades to move air through the power vent assembly, supporting proper ventilation and reliable heating system operation. This blower wheel helps maintain consistent airflow, supports efficient equipme... https://www.partshnc.com/modine-5h71838-1-pv-blower-wheel