Engine Cylinder Head Studs 98.5-18

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98.5-18 RAM CUMMINS 5.9/6.7L DIESEL 24VALVE 12MM HEAD STUD KIT ARP2000 Pro series cylinder head studs from ARP are cold-forged to ensure molecular integrity. They are heat-treated prior to thread rolling and machining and are rated at a whopping 200,000 psi for the 8740 material and 220,000 psi for ARP2000. ARP Pro series kits are also available with 12-point nuts, and all kits come complete with hardened parallel washers for an even load distribution and accurate torque readings. Show more