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ARP 247-4204 Custom Age 625+ Head Stud Kit – 5.9L / 6.7L Cummins   When cylinder pressure goes up, factory hardware becomes the failure point. The ARP 247-4204 Custom Age 625+ Head Stud Kit is built for high-horsepower and competition-level 5.9L and 6.7L Cummins...

The ARP 247-4202 is a Pro Series Cylinder Head Stud Kit designed for 1998.5–2024 Dodge Ram 5.9L and 6.7L Cummins diesel engines. Made from ARP2000 alloy, these high-strength studs (220,000 psi) prevent cylinder head lifting and gasket failures in high-performance or towing applications. The kit includes 26...