Supco fb403 Plastic Fan Blade 4 in 5 Blade Ccw

Product Description

The SUPCO fb403 is a plastic replacement fan blade designed for small-motor cooling and ventilation applications in HVAC and refrigeration equipment. With a 4-inch blade diameter, a 1/8-inch bore, and five blades configured for counter-clockwise (CCW) rotation, this blade is built to restore proper airflow in systems where the original blade has cracked, broken, or become unbalanced. It is a direct-style replacement component typically installed by HVAC technicians and refrigeration service pros during routine maintenance or emergency service calls.

This fan blade is suited for use in small evaporator fan assemblies, condenser fan applications, and other low-profile blower configurations common in residential and light-commercial refrigeration units, window air conditioners, and packaged cooling equipment. Confirm motor shaft size and rotation direction before installation. The CCW rotation designation applies when viewing the blade from the front of the motor shaft.

Key Features

• 4-inch blade diameter for compact fan motor assemblies
• 1/8-inch bore fits standard small-frame motor shafts
• Five-blade design promotes steady, balanced airflow
• Counter-clockwise rotation matches common evaporator and condenser fan motors
• Plastic construction resists corrosion in humid or wet coil environments

Compatibility

Designed as an OEM-style replacement fan blade for small-frame motors with a 1/8-inch shaft requiring counter-clockwise rotation and a 4-inch blade sweep.

Installation Notes

Installation should be performed by a qualified HVAC or refrigeration technician. Disconnect and lock out all power to the unit before removing the old blade or accessing the motor shaft. Verify that rotation direction, bore size, and blade diameter match the original component before securing the blade to the shaft. Ensure the blade is fully seated and the set screw or retention hardware is tightened before restoring power.

Technical Specifications

• Blade Diameter: 4 inches
• Bore Size: 1/8 inch
• Number of Blades: 5
• Rotation: Counter-Clockwise (CCW)
• Material: Plastic

Standard Information

• Brand: SUPCO
• Manufacturer Part Number: fb403