8mm HTD Pulley - 56T x 3.500

The 8mm HTD Pulley - 56T x 3.500 from Blower Drive Service is a precision-engineered supercharger drive component engineered for demanding engine applications requiring reliable belt synchronization and power transfer. This HTD (Synchronous) pulley is purpose-built for users who demand consistent performance in high-output forced induction systems, where precise tooth engagement and load distribution are non-negotiable. Whether powering performance automotive builds, industrial compressor systems, or equipment requiring robust belt drive architecture, this 56-tooth pulley delivers the engineering integrity that separates professional-grade installations from consumer-level alternatives.

Manufactured from aluminum and finished to a polished surface, the 8mm HTD Pulley features 56 teeth with a 3.5-inch bore width, designed to mesh seamlessly with matching HTD belts in 8mm pitch configurations. The HTD (High Torque Drive) tooth profile ensures positive engagement without slip, eliminating the belt creep common in older V-belt systems—critical when supercharger boost consistency directly impacts engine performance and reliability. The polished aluminum construction provides durability while maintaining a professional appearance; the 2.36 lbs weight and compact 5.7 x 3.8 x 5.75-inch profile allow straightforward installation in space-constrained engine bays without sacrificing structural integrity or load capacity.

Technicians and performance builders working with Blower Drive Service supercharger kits, or integrating standalone forced induction systems, will recognize this pulley as an OEM-specification replacement or upgrade component. Proper HTD belt sizing and pulley alignment are essential during installation—verify your belt pitch, width, and tooth count match this 56-tooth, 8mm specification before purchasing. This pulley suits both street and competition applications where drive system reliability and repeatable boost delivery justify precision engineering investment.