14-Tooth W.P. Pulley

The 14-Tooth W.P. Pulley by Moroso is an essential component for engine builders and performance enthusiasts looking to optimize serpentine belt drive systems. This precision-engineered pulley is designed for builders who need tighter belt tension control and improved accessory drive efficiency in modified engines. Whether you're upgrading a street rod, performance crate engine, or custom build, the 14-tooth configuration delivers the mechanical advantage necessary for consistent power transmission across alternators, water pumps, and air conditioning compressors.

Built with Moroso's reputation for precision manufacturing, the 14-tooth design balances belt wrap efficiency with reduced slippage during high-load conditions. The W.P. designation indicates this is a wide-profile pulley, engineered to work seamlessly with modern serpentine belt systems while maintaining optimal contact geometry. At just 0.16 lbs and compact dimensions (3.7 x 1.55 x 5 inches), this pulley offers minimal rotating mass—a critical factor for reducing parasitic drag and freeing up horsepower in fuel-injected and turbocharged applications. The tighter tooth pitch relative to larger pulley options makes this ideal for engines where space constraints demand compact accessory mounting.

Mechanics and engine builders routinely specify the 14-Tooth W.P. Pulley for late-model LS swaps, small-block rebuilds, and supercharged applications where serpentine belt tension and drive ratio optimization are critical. This pulley pairs effectively with matching crankshaft dampers and idler assemblies to create a balanced accessory drive train. Installation requires confirming belt length compatibility with your specific engine configuration—verify your serpentine belt routing diagram before ordering to ensure proper fit with your alternator and water pump pulleys.