For a Cummins ISX engine using new bolts, the torque procedure is as follows: Connecting Rod Bearings (New Bolts)

Part 2: Cummins ISX Connecting Rod Torque Specs (New)

The ISX uses a fractured-cap design. The rod bolts experience immense tensile stress. For new rod bearings, you must follow the "Rod Bolt Stretch" method or the equivalent torque-angle.

Second Torque: Retighten in numerical sequence to 52 ft-lb (70 N•m). Verification: Verify all bolts are at 52 ft-lb. Final Angle: Rotate the capscrews an additional 60 degrees. Installation Tips and Clearances ISX Cummins Main and Rod Bolt Torque Specs Guide

Disclaimer: Always refer to the official Cummins Service Manual (CET-007, or Current Electronic Manual) for your specific engine serial number (ESN). This article provides general specifications for common ISX models (2007-2018, EGR/DPF variants). Variations exist for the ISX12, QSX, and Signature 600.