Rcd p461-3507 Hvac Pulley 4.25 in 5/8 Bore Fan Coil Heat Pump

Product Description

The RCD p461-3507 is a replacement HVAC pulley designed for use in fan coil units and heat pumps where reliable belt-driven airflow is essential. Measuring 4.25 inches in overall size with a 5/8 inch bore and a pitch diameter range of 2.8 to 3.8 inches, this pulley is engineered to restore proper belt alignment and tension in blower and fan drive assemblies. Weighing 3 pounds and measuring 4.5 inches in length by 4.3 inches in width by 2.2 inches in height, it is a direct OEM-style replacement intended for installation by licensed HVAC technicians servicing residential and light commercial systems.

This pulley fits fan coil and heat pump applications where belt-drive blower assemblies are used. It is suited for systems requiring a variable pitch pulley that adjusts within the 2.8 to 3.8 inch pitch diameter range, allowing technicians to fine-tune blower speed and airflow output to meet system design requirements. Compatible models noted in product data include 48DJE012 620, 40RMS008 601, and 524JE08A000 A.

Key Features

• 4.25 inch overall pulley size suits standard belt-drive blower assemblies
• 5/8 inch bore for direct shaft fitment on common blower motor shafts
• Variable pitch diameter range of 2.8 to 3.8 inches allows blower speed adjustment
• OEM-style replacement engineered to match original drive geometry and belt tracking
• Compact profile at 4.5 x 4.3 x 2.2 inches fits within standard equipment cabinet clearances

Compatibility

Compatible models identified in product data include 48DJE012 620, 40RMS008 601, and 524JE08A000 A. Designed as an OEM-style replacement pulley for belt-driven fan coil units and heat pumps.

Installation Notes

Installation should be performed by a licensed HVAC technician. Disconnect and lock out electrical power to the unit before accessing the blower compartment or handling any drive components. Inspect the drive belt, motor shaft, and set screw for wear before installing the new pulley, and verify bore alignment and pitch diameter setting before restoring power. Refer to the equipment service manual for torque and belt tension specifications specific to the unit being serviced.

Technical Specifications

• Pulley Size: 4.25 inches
• Bore: 5/8 inch
• Pitch Diameter Range: 2.8 to 3.8 inches
• Length: 4.5 inches
• Width: 4.3 inches
• Height: 2.2 inches
• Weight: 3 pounds

Standard Information

• Brand: RCD
• Manufacturer Part Number: p461-3507