ARP 247-4202 Cummins Diesel Head Stud Kit for 1998.5 to 2024 Dodge Ram 2500, 3500, 4500, and 5500 series 5.9L and 6.7L Cummins powered trucks. ARP 247-4204 ARP2000 alloy Head Studs are the highest quality heat-treated fastener on the market today with a