ARP Head Stud Kit for Dodge (1989-98) Cummins 4BT 3.9L

ARP 247-4206 Diesel Head Stud Kit are a great way to upgrade the stock head bolts on your 3.9L Cummins 4BT project. These studs are constructed from the exclusive ARP 2000 material that has the threads rolled after being heat treated for superior strength to handle 220,000 PSI tensile strength. A tough black oxide coating has been added to the studs, parallel-ground washers, and chrome-moly steel 12-point nuts for durability.