Rcd p461-3708 Motor Pulley 4.25 in Od 0.875 in Shaft

Product Description

The RCD p461-3708 is a motor pulley designed for use in HVAC blower and air handler assemblies. It features a 4.25-inch outer diameter and a 0.875-inch shaft bore, making it a direct-fit replacement for systems that rely on belt-driven blower motors. This pulley transfers rotational force from the motor shaft to the blower belt, maintaining proper airflow across the heat exchanger or coil. HVAC technicians install this part during routine maintenance, belt replacements, or following pulley wear and belt-slip diagnosis. Correct pulley sizing is critical to maintaining designed airflow and system efficiency.

This motor pulley is suited for residential and light commercial HVAC applications where belt-driven blower assemblies are in use, including heat pump systems and packaged rooftop units. It is a replacement component intended for systems requiring a 4.25-inch OD pulley with a 0.875-inch shaft size. Compatible models listed in product data include 48HJS014 560, 581BEV150250MK, and 48KCEB04 6A.

Key Features

• 4.25-inch outer diameter for proper belt alignment and drive ratio
• 0.875-inch shaft bore fits standard motor shaft sizes used in belt-drive blower assemblies
• OEM-style replacement designed to match original dimensional specifications
• Supports reliable belt-driven airflow in heat pump and packaged HVAC systems

Compatibility

Compatible models listed in the input data include 48HJS014 560, 581BEV150250MK, and 48KCEB04 6A. Verify shaft diameter, outer diameter, and belt groove profile against the original pulley before installation.

Installation Notes

A licensed HVAC technician should perform this replacement. Disconnect and lock out electrical power to the unit before removing the blower belt or accessing the motor shaft. Use a pulley puller to remove the existing pulley without damaging the motor shaft bearing. After installing the new pulley, check belt tension and alignment per the equipment manufacturer's service documentation before restoring power.

Technical Specifications

• Outer Diameter: 4.25 inches
• Shaft Bore: 0.875 inches
• Package Length: 5 inches
• Package Width: 5 inches
• Package Height: 3 inches

Standard Information

• Brand: RCD
• Manufacturer Part Number: p461-3708