Source1 2813379000 Fixed Sheave 1 Groove 1 Inch Bore AK74X1

Product Description

The Source1 2813379000 is a fixed sheave designed for use in HVAC blower and air handler assemblies. It features a single groove configuration and a 1 inch bore, making it compatible with standard belt-driven fan and blower systems commonly found in residential and light commercial HVAC equipment. This sheave is also identified by the cross-reference number AK74X1, which helps technicians quickly match it to existing components during a service call or replacement job.

Fixed sheaves are a core component in belt-drive systems. Unlike variable-pitch sheaves, a fixed sheave maintains a constant pulley diameter. This means the drive ratio between the motor and the blower wheel stays consistent, delivering predictable airflow and fan speed performance. HVAC technicians use fixed sheaves when a specific, locked-in speed setting is required or when replacing a worn or damaged pulley on an existing system.

The 1 inch bore fits directly onto standard motor shafts found in many fractional and integral horsepower blower motors. Proper sheave sizing is critical in air handler and furnace blower applications. An incorrectly sized sheave can lead to belt slippage, excessive wear, reduced airflow, and higher energy consumption. Using the correct OEM-matched or equivalent replacement sheave, like the Source1 2813379000, helps restore proper system performance quickly and reliably.

This part is well suited for HVAC service contractors, maintenance technicians, and mechanical contractors who work on belt-driven blower systems in rooftop units, air handlers, furnaces, and similar equipment. It is a direct replacement component intended to restore equipment to factory specifications.

• Single groove fixed sheave designed for belt-driven HVAC blower and fan systems
• 1 inch bore fits standard motor shafts in fractional and integral horsepower blower motors
• Cross-references to AK74X1 for easy identification during replacement and sourcing

Product Highlights

The Source1 2813379000 fixed sheave provides a reliable, constant-ratio drive solution for belt-driven HVAC blower systems. Its single groove design and 1 inch bore make it a straightforward replacement for technicians working on air handlers, furnaces, and rooftop units.

Product Information

Standard Information

• Brand: SOURCE1
• Manufacturer Part Number: 2813379000

Technical Specifications

• Type: Fixed Sheave
• Number of Grooves: 1
• Bore Size: 1 inches
• Cross Reference: AK74X1