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

ARP Main Stud Kit for BMW M50/M52 & S50US/S52US (2-Bolt) Upgrade your BMW’s bottom end with the ARP Main Stud Kit engineered specifically for M50/M52 and S50US/S52US engines using 2-bolt main caps. Designed for street, track, and competition builds, ARP studs provide superior clamping force, precision fit, and long-term durability. Fitment: Direct replacement for BMW M50/M52 and S50US/S52US 2-bolt main caps High-strength construction: Premium alloy fasteners with ARP proprietary heat treatment for maximum tensile strength Corrosion-resistant finish: Durable coating protects against rust and wear in harsh environments Performance benefits: Increased main joint clamp load, improved crankshaft control, reduced cap walk and fastener fatigue at high RPM or under boost Precision engineered: Accurate thread geometry and shank fit for consistent torque and repeatable performance Complete kit: All main studs and quality hardware included for a correct installation This kit is ideal for builds ranging from mild power upgrades to full race preparation — delivering reliability, strength, and improved engine longevity. Backed by ARP’s legacy of quality, it’s a smart upgrade to protect your engine under load. Installer tip: Use ARP Assembly Lubricant and follow ARP torque specifications to achieve proper clamp loads and service life.