Pulley 4.500 6 Groove Serpentine

The Pulley 4.500 6 Groove Serpentine from Jones Racing Products is a precision-engineered power steering pump pulley designed for serious engine builders and performance enthusiasts who demand reliability in their serpentine drive systems. Built for vehicles requiring a 4.5-inch diameter pulley with six-rib serpentine belt compatibility, this component is essential for maintaining proper accessory drive function in modified or high-performance engine applications. Whether you're assembling a crate engine, upgrading a stock drivetrain, or replacing a worn pulley in a competition build, this aluminum serpentine pulley delivers the durability and precision fitment that professional mechanics and fabricators expect.

Manufactured from aluminum and finished in black anodize, the Pulley 4.500 6 Groove Serpentine features a press-on design that ensures secure installation without complicated fastening. The black anodized finish provides corrosion resistance while maintaining a clean, professional appearance under the hood. The six-groove profile is engineered to work with modern serpentine belt systems, distributing load evenly across the belt contact surface to minimize slippage and maximize power transmission efficiency to the power steering pump. Weighing just 0.57 pounds, the lightweight construction contributes to reduced rotational mass, which can improve engine response in performance builds. The 4.5-inch diameter spec is critical for belt wrap calculations and drive ratio tuning, making this pulley suitable for specific engine platforms and configurations.

This pulley is ideal for engine builders, restoration specialists, and performance shops working on custom engine swaps, LS conversions, or high-output engine packages where OEM pulleys are incompatible or undersized. Mechanics who are upgrading serpentine drive systems on older vehicles or installing modern accessory drives will appreciate the precision machining and straightforward press-on installation. Verify your engine's accessory mounting configuration and belt routing before purchase to ensure compatibility with your specific application. For optimal results, pair this pulley with a properly sized serpentine belt and ensure all drive system components are in good condition to maximize longevity and performance.