Source1 107110005 Pulley Key 1/4 Inch Square X 2 Inch

Product Description

The Source1 107110005 is a pulley key designed for use in HVAC blower and belt-drive systems. This small but critical component keeps pulleys locked securely to motor and blower shafts. Without a properly sized key, pulleys can slip, causing belt misalignment, reduced airflow, and equipment failure. The 107110005 is a square key measuring 1/4 inch by 1/4 inch in cross-section and 2 inches in length. This profile is a standard Woodruff-style replacement key used across a wide range of York and compatible HVAC air handling units, rooftop units, and commercial blower assemblies. HVAC technicians rely on this type of shaft key when replacing motors, blower wheels, or pulleys during routine maintenance or emergency repair. The key fits into a matching keyway milled into the shaft and the pulley bore. Once seated, it transfers torque from the motor shaft to the pulley, driving the belt that moves air through the system. Using the correct key size ensures proper torque transfer and prevents premature wear on both the shaft and the pulley. This part is sourced through the Source1 parts program, which supplies OEM-quality replacement components for York, Johnson Controls, and affiliated HVAC brands. Keeping spare pulley keys on hand is standard practice for service technicians who work on belt-drive blower systems regularly. The 107110005 is a direct fit for compatible York equipment and meets OEM dimensional standards. It is machined to close tolerances for a snug, reliable fit in the keyway. Trade professionals can use this part with confidence during motor swaps, blower replacements, or full drive system rebuilds.

• Square key profile measures 1/4 inch wide by 1/4 inch tall by 2 inches long for precise shaft and pulley engagement
• OEM-quality replacement component sourced through the Source1 parts program for York and compatible HVAC equipment
• Designed for belt-drive blower systems in air handlers, rooftop units, and commercial HVAC applications

Product Highlights

The Source1 107110005 pulley key provides a reliable, OEM-spec fit for belt-drive HVAC blower assemblies. Its standard 1/4 inch square profile makes it a go-to replacement for York-compatible motor and blower shaft repairs.

Product Information

Standard Information

• Brand: SOURCE1
• Manufacturer Part Number: 107110005

Technical Specifications

• Key Type: Square shaft key
• Cross-Section Width: 1/4 inch
• Cross-Section Height: 1/4 inch
• Key Length: 2 inches
• Compatible Equipment: York and compatible belt-drive HVAC blower systems