ARP BMW E46 M3/S54 Main Stud Kit

Designed for the BMW E46 M3 and S54-equipped Z3/Z4 models, this ARP main stud kit replaces factory fasteners with precision-engineered studs to secure the crankshaft main caps and maintain consistent clamp force under demanding conditions. The kit is intended for enthusiasts and engine builders seeking a direct-fit solution for improved main-cap retention and long-term reliability in high-performance or track use.

Vehicle Fitment:

• 2001–2006 BMW M3 Base
• 2001–2002 BMW Z3 M Coupe
• 2001–2002 BMW Z3 M Roadster
• 2006–2008 BMW Z4 M Coupe
• 2006–2008 BMW Z4 M Roadster