For used bolts, inspect for any signs of stretching or damage. Many professional guides recommend using new head and rod bolts for every major rebuild. Cummins ISX Torque Specs: Main & Rod Bearings, Oil Pump
Use a paint pen to mark the bolt heads after Step 2. This provides a visual reference to ensure every bolt has been rotated exactly 60 degrees. 📏 Installation Best Practices cummins isx main and rod bearings torque specs new