Griptec 2.75-Inch 6-Rib Supercharger Pulley

The ZPE Griptec WH275BB3Z6 is an ultra-lightweight supercharger pulley engineered for optimal performance and durability. Crafted from billet 7075-T6 aerospace-grade aluminum, it provides enhanced strength and hardness over standard 6061 T6 materials. Featuring the patented GripTec® micro-machining technology, this pulley maximizes grip force on the belt, effectively eliminating belt slip and allowing your supercharger to operate at its full potential. The pulley is finished in a durable black Type III Anodized, Class 2, Hard Coat for longevity and resistance to wear. This specific model is 2.75 inches in diameter and features 6 ribs, with a Grip Level of 3. This pulley is compatible with Whipple kits from early 2000 to current models. It is made from a stronger and harder material than 6061 T6 aluminum, ensuring robust performance under demanding conditions. This pulley is also noted as being compatible with Whipple Standard L3 applications and is available in various configurations for different supercharger types, including Magnuson, LSA/LT4, and Ford-Roush TVS R2650 systems, though specific fitment for those may vary by part number.