Precision Works E55 5.5 AMG M113K Supercharger Pulley 83mm Upgrade

Unlock an extra 2.5 psi of boost pressure and unleash more horsepower and torque from your supercharged M113K engine with this precision-engineered pulley upgrade. This CNC-machined billet aluminum performance pulley reduces rotational mass while maintaining the durability of an OEM Nachi Japan bearing for long-lasting reliability. The 83.9mm diameter design is a direct bolt-on replacement that increases boost without requiring additional modifications.

• •CNC-machined from billet aluminum
• •83.9mm diameter with ~2.5 psi boost increase
• •OEM Nachi Japan bearing for proven durability
• •Lightweight construction reduces rotational mass
• •Direct bolt-on fit, no modifications needed
• •Factory reference: A1130900044

**Fitment:** 2003-2007 Mercedes-Benz E55, CLS55, S55, CL55, G55