ARP 247-4202 DIESEL HEAD STUD KIT 5.9/6.7 Cummins

The ARP 247-4202 Diesel Head Stud Kit from XDP is designed for Dodge Ram 5.9L/6.7L Diesel engines, addressing the weaknesses of OEM head bolts, especially in modified engines. Unlike Torque-To-Yield (TTY) bolts that can fail under increased combustion pressure, ARP’s heavy-duty head studs provide superior clamping force to prevent issues like blown head gaskets. Made from a premium grade ARP2000 alloy, these studs offer a tensile strength of 220,000 psi, outperforming standard materials like Chrome Moly 8740. 

Each stud undergoes rigorous heat treatment, centerless grinding, and thread rolling after heat-treatment for optimal fatigue strength. They are shot-peened for surface integrity and finished with a black oxide coating for corrosion resistance. With features such as broached stud ends for easier installation and hardened ground washers for accurate torque, this kit is the choice of top professional engine builders. It is a direct-fit for 24-valve 5.9L and 6.7L engines in Dodge Ram 2500/3500 trucks.