Pulley 56 Tooth HTD 5MM

The Pulley 56 Tooth HTD 5MM from Waterman Racing Comp is a precision synchronous pulley engineered for high-performance automotive belt drive systems. Built for serious engine builders, drag racers, and street performance enthusiasts, this HTD pulley delivers repeatable accuracy where alternator and accessory timing demands absolute consistency. Whether you're building a competition engine or upgrading serpentine belt management on a modified platform, the 56-tooth design integrates seamlessly into existing HTD 5MM belt systems used in engine bay accessory drives.

HTD (High Torque Drive) 5MM profile pulleys feature precisely molded tooth geometry that eliminates belt slip under load and thermal cycling—critical when upgrading to high-output alternators, supercharger installations, or aggressive cam timing configurations. The 56-tooth count balances belt wrap and rotational speed, making this pulley ideal for intermediate reduction ratios in forced-induction setups or stock-replacement applications requiring OEM-spec reliability with performance durability. Waterman Racing Comp's manufacturing tolerances ensure minimal runout and consistent tooth spacing, preventing vibration and premature belt wear that compromise alternator output or create accessory bearing stress.

This pulley suits mechanics and engine builders upgrading serpentine systems on LS-series, small-block, big-block, and modern modular platforms where HTD drives replace or augment OEM V-belt setups. Installation pairs directly with HTD 5MM belts and compatible idler or tensioner assemblies; verify your engine's accessory bracket diameter and bolt pattern before purchase. Compact dimensions (5.55" × 2.75" × 5.75") and lightweight construction (0.58 lbs) minimize parasitic drag while fitting tight engine bays. Ideal for street cars, race engines, and restorations demanding precision accessory management without compromise.