ARP Main Stud Kits | Multiple Jeep Fitments (146-5401)

The ARP Main Stud Kits for multiple Jeep applications are high-performance fastener solutions designed to secure the engine's main caps. Crafted from 8740 chromoly steel and heat-treated to achieve a tensile strength of 190,000 psi, these studs provide exceptional durability and strength under demanding conditions. The precision J-form threads are rolled after heat treatment, resulting in stronger, more reliable threads compared to standard fasteners. The kits include hardened, parallel-ground washers and high-quality nuts, ensuring a secure fit and long-lasting performance. These main stud kits are engineered to prevent main cap walk and fretting, thereby enhancing engine integrity and longevity during high-stress operation.

Designed for Jeep 4.0L inline 6-cylinder engines, these ARP main stud kits are suitable for various Jeep models requiring a robust fastening solution. They serve as a direct upgrade or replacement for factory fasteners, providing increased clamping force and improved engine stability. Installation involves replacing the stock main bolts with these high-strength studs, making them ideal for performance builds, racing, or heavy-duty off-road use. The kit ensures a reliable, bolt-on upgrade that enhances engine durability and performance, especially in high-performance or modified applications requiring superior thread strength and secure main cap retention.