S50 S52 ARP Main Stud Kit

Building a high-performance S50/S52 engine? This ARP crankshaft main stud kit delivers superior clamping force and reliability over OEM main bolts — trusted by engine builders worldwide.

• Superior clamping strength over OEM crankshaft main bolts
• Reusable hardware — unlike your factory bolts
• Precision-engineered by ARP, the world leader in fastener technology
• Fits M50, M52, S50, and S52 engines
• Replaces BMW part number 11111735525

For torque specifications, see the Spec Sheet.

We use these in many of our own in-house builds and are fully confident in the fit, finish, and performance of every ARP stud kit we carry.