This ARP main stud kit replaces the factory main cap bolts on the 1989 to mid-1997 Dodge Cummins 5.9L 12-valve diesel with studs that clamp the main caps more consistently for high-boost and high-torque builds. The studs are made from ARP2000 material rated to 220,000 psi tensile strength, and the kit uses 14mm main studs with hardened, parallel-ground washers and nuts for accurate, repeatable torque.
| Type | Main stud kit |
| Material | ARP2000 (220,000 psi tensile strength) |
| Stud Size | 14mm main studs |
| Engine | Dodge Cummins 5.9L 12-valve diesel |
| Part Number | 247-5402 |
| Quantity | 1 kit |
Shipping: In-stock orders placed before 3 PM EST ship the same day, and everything else ships within 24 hours. Standard, expedited, and overnight options are available at checkout. Backordered items ship as soon as we get them back in stock. Contact us for lead times. See the full Shipping Policy.
Returns: 30-day returns on new, unused items in original packaging. See the full Refund Policy.
