ARP Main Stud Kits

Universal Fitment

Part #: 204-5402

Overview

The ARP Main Stud Kit is a high-strength fastening solution designed for performance engine builds. Crafted from 8740 chromoly steel and heat-treated to achieve a tensile strength of 190,000 psi, these studs provide superior durability and reliability under demanding conditions. Ideal for automotive enthusiasts and professional builders, this kit helps prevent main cap walk and fretting, ensuring consistent engine performance and longevity. Whether you're assembling a high-performance street engine or a race-ready powerplant, these studs support a secure and stable main bearing cap connection, contributing to overall engine integrity and smooth operation.

Key Features

Designed with precision and strength in mind, the ARP Main Stud Kit offers several key benefits:

• Made from 8740 chromoly steel for exceptional strength and durability
• Heat-treated in-house to 190,000 psi tensile strength for maximum reliability
• Rolled J-form threads after heat treatment for stronger, more reliable threads
• Includes hardened parallel-ground washers for consistent load distribution
• High-quality nuts for secure fastening and ease of installation
• Engineered to eliminate main cap walk and fretting issues
• Suitable for multiple Volkswagen engine applications

Construction & Design

The studs are manufactured from premium 8740 chromoly steel, known for its excellent strength-to-weight ratio and toughness. The heat-treatment process enhances the material’s tensile strength, ensuring the studs can withstand high-stress conditions. The precision rolled threads improve thread strength and engagement, reducing the risk of stripping or failure during engine operation. The included washers are hardened and ground to ensure proper fit and load distribution, supporting a secure and stable main cap assembly.

Installation & Fitment

Installation of these main studs requires proper torque specifications and alignment to ensure optimal performance. It is recommended to verify fitment against your specific engine model and consult the manufacturer’s guidelines for installation procedures. The kit is designed to be a direct replacement for the stock main studs in compatible Volkswagen engines, providing a reliable upgrade for high-performance builds.

What’s Included

The kit includes all necessary studs, hardened washers, and nuts required for a complete installation, ensuring you have everything needed for a secure and durable main cap assembly.