Radius Tooth Belt - 33.7 x 1/2 106 Teeth

The Radius Tooth Belt - 33.7 x 1/2 106 Teeth by MOROSO is a precision HTD synchronous drive belt engineered for engine accessory and automotive performance applications. This belt transmits power from the crankshaft to alternators, water pumps, and supercharger systems with consistent, slip-free operation. Built to exacting tolerances, the Radius Tooth Belt is the OEM-equivalent replacement for high-performance engines and custom builds where reliability under continuous duty is non-negotiable.

This HTD belt features 106 evenly spaced teeth across its 33.7-inch length, with an 8 mm pitch that ensures positive engagement with matching pulleys and zero belt slip during operation. The 1/2-inch width accommodates mid-range accessory loads typical of street performance and race engines, while the reinforced tooth profile resists wear and heat degradation common in high-RPM environments. Radius design geometry optimizes belt tracking and reduces edge fraying, extending service life and maintaining consistent power delivery across all engine speeds.

Mechanics, engine builders, and performance enthusiasts rely on the Radius Tooth Belt for serpentine and multi-accessory drive system replacements. Whether upgrading a carbureted engine or maintaining a modern fuel-injected platform, this belt is compatible with all pulleys matching HTD 8 mm pitch specifications. Installation is straightforward—simply route the belt around existing pulleys and adjust tensioner for proper deflection. Weighing just 0.18 lbs, it integrates seamlessly into any engine bay configuration.