ARP Main Stud Kits | Multiple Audi Fitments (204-5404)

The ARP Main Stud Kit is a high-performance fastening solution designed to secure engine main caps and prevent cap walk or fretting during operation. Constructed from 8740 chromoly steel and heat-treated to achieve a 190,000 psi tensile-strength rating, these studs provide exceptional durability and strength. The precision J-form threads are rolled after heat treatment, resulting in stronger, more reliable threads compared to standard fasteners. The kit includes hardened parallel-ground washers and high-quality nuts, ensuring a secure and stable engine assembly. This product enhances engine integrity by maintaining proper cap alignment under high-stress conditions, making it ideal for performance builds and demanding applications.

Designed for multiple Audi models with specific fitment requirements, these ARP main studs are suitable for engines where main cap stability is critical. They serve as a direct replacement or upgrade for stock fasteners, offering increased clamping force and reliability. The kit is suitable for street, track, or racing use, providing confidence in high-performance engine environments. Installation involves replacing the original main cap bolts with these studs, which are engineered for ease of use and long-term durability. Compatibility notes should be checked against vehicle specifications to ensure proper fitment for your application.