Power Steering Pump Pulley 4-5/8in Diameter

The Power Steering Pump Pulley 4-5/8in Diameter from BORGESON (SKU BRG801202) is a precision-engineered replacement component designed for drivers and mechanics who demand reliable steering performance in street rods, classic vehicles, and modern performance builds. This 4.625-inch aluminum pulley serves as the critical interface between your engine's serpentine belt system and your power steering pump, transferring rotational energy to maintain consistent hydraulic pressure for responsive steering assist. Whether you're restoring a vintage hot rod, upgrading a muscle car, or maintaining a high-performance street machine, a quality power steering pump pulley is essential for smooth, predictable steering feel and long-term pump reliability.

Constructed from lightweight aluminum and finished in natural bare metal, this single-groove V-belt pulley delivers dependable power transmission while minimizing rotating mass that can tax your serpentine belt drive. The bolt-on design allows straightforward installation on standard power steering pump shafts, and the precisely machined 4.625-inch diameter ensures proper belt wrap and tension characteristics for your belt drive system. BORGESON's engineering focuses on dimensional accuracy and material durability, ensuring that pulley runout stays within acceptable tolerances and that the pulley resists cracking or premature wear even under prolonged high-load steering input or engine vibration.

Mechanics and restoration enthusiasts benefit most when replacing worn or damaged pulleys during belt service intervals or when swapping in aftermarket power steering pumps that demand OEM-spec pulleys for proper belt engagement. This component is ideal for custom builds where stock pulleys are unavailable or incompatible with your chosen pump or serpentine system layout. Weighing just 0.85 pounds, installation is straightforward for any technician with basic wrench skills—simply unbolt the old pulley, slide the new one onto the pump shaft, and torque the fastener to specification. Verify your pump shaft diameter and bolt pattern before ordering to ensure perfect fitment.