Pulley Crankshaft HTD 18 Tooth 1in Wide

The Pulley Crankshaft HTD 18 Tooth 1in Wide is a precision-engineered timing component built for high-performance marine engines and demanding watercraft propulsion systems. Designed by Jones Racing Products, this crankshaft pulley synchronizes camshaft and crankshaft rotation through HTD (High Torque Drive) belt engagement, ensuring reliable ignition timing and fuel injection coordination on the water. Whether you're running a high-horsepower inboard or outboard setup, accurate pulley geometry is non-negotiable—slack or misaligned timing belts lead to rough idle, power loss, and costly engine damage in the middle of a run.

Built from lightweight aluminum with black anodized corrosion resistance, this pulley features an 18-tooth HTD profile with 8 mm pitch, a 1-inch wide belt interface, and a 1-inch mandrel bore designed for universal engine block compatibility. The 1/8-inch keyway provides positive drive engagement, preventing slip under load and vibration. The compact 2.75 x 1.55 x 4.2-inch footprint and featherweight 0.13 lbs minimize rotating mass—critical in marine applications where inertial losses directly reduce acceleration and fuel efficiency. Black anodized finish stands up to salt spray, freshwater corrosion, and UV exposure better than bare aluminum, extending service life in harsh boating environments.

Boaters rebuilding or upgrading stock ignition and fuel systems benefit from OEM-grade replacement or aftermarket performance configurations. Installation requires only a 1-inch mandrel fit and keyway alignment—no modifications needed on most universal applications. This pulley pairs seamlessly with HTD timing belts and compatible water-pump and alternator pulleys to maintain system balance and reduce parasitic drag. For competitive boaters, engine builders, and reliability-focused anglers who demand consistent performance in extreme conditions, the Jones Racing Products crankshaft pulley delivers timing precision you can trust.