Pulley HTD 40 Tooth 1in Wide 5/8in ID 3/16in Key

The Pulley HTD 40 Tooth 1in Wide 5/8in ID 3/16in Key from Jones Racing Products is a precision-engineered fuel pump pulley designed for high-performance marine and automotive engines. Built for boaters and engine builders who demand reliable power transmission, this HTD (High Torque Drive) pulley synchronizes crankshaft rotation with fuel pump operation, ensuring consistent fuel delivery across engine load ranges. Whether you're upgrading a racing engine, restoring a classic performance boat, or maintaining critical marine propulsion systems, this pulley delivers the engineering precision that separates smooth operation from costly downtime.

This HTD pulley features 40 teeth with a 3/16-inch pitch, engineered to mesh precisely with compatible belt systems and eliminate slip under load. The 1-inch wide profile accommodates standard fuel pump belt applications, while the 5/8-inch bore with 3/16-inch key slot ensures secure, repeatable mounting on fuel pump shafts. Constructed from aluminum and finished in black anodized coating, the pulley resists corrosion in salt-water and humid marine environments while maintaining a professional appearance. The anodized surface also reduces heat absorption and extends service life in engine bay conditions where temperature fluctuations and moisture exposure are constant challenges.

Serious boaters, engine rebuilders, and marine technicians rely on Jones Racing Products pulleys to maintain fuel delivery stability in high-RPM and performance applications. This HTD 40-tooth design is compatible with standard HTD belt systems and works seamlessly in fuel pump drive arrangements where synchronous power transmission prevents belt slippage and fuel starvation at critical moments. Installation requires alignment with existing crankshaft or accessory drive configurations; verify bore diameter and keyway specifications before ordering to ensure proper fit on your fuel pump assembly.