ARP BMW M50 / M52 S50US/S52US 2-Bolt Main Stud Kit

This ARP main stud kit replaces the factory main studs with a high-strength, 2-bolt solution engineered for BMW M50 and M52 family engines, including S50US and S52US variants. Designed to deliver reliable clamp load for the engine’s main caps, the kit is intended for performance and rebuild applications where durable, repeatable fastening is required on 1990s-era BMW inline-six platforms.

Features:

• 2-bolt main stud configuration for M50/M52 engines
• Fits M50, M52, S50US, S52US engines
• ARP engineered fastener kit for high-strength clamping

Vehicle Fitment:

• 2000–2000 BMW 323Ci Base
• 1998–2000 BMW 323i Base
• 1998–1999 BMW 323is Base
• 1992–1992 BMW 325i Base
• 1992–1992 BMW 325is Base
• 2000–2000 BMW 328Ci Base
• 1996–2000 BMW 328i Base
• 1996–1999 BMW 328is Base
• 1991–1995 BMW 525i Base
• 1993–1993 BMW 525iT Base
• 1997–1998 BMW 528i Base
• 1995–1999 BMW M3 Base
• 1995–1995 BMW M3 Lightweight
• 1999–2000 BMW Z3 M Coupe
• 1998–2000 BMW Z3 M Roadster
• 1997–2000 BMW Z3 Roadster