Cummins Isx Main And Rod Bearings Torque Specs New Jun 2026

Always lubricate bolt threads and the underside of the bolt heads with clean 15W-40 engine oil before installation to ensure accurate torque readings. Loctite 518

It's essential to verify the torque specs for your specific engine model and year to ensure accuracy. Always consult with a qualified mechanic or Cummins documentation for the most up-to-date and accurate information. cummins isx main and rod bearings torque specs new

The ISX connecting rod bolts have a specific torque-angle that differs slightly from the main bolts. Some older manuals call for a different torque for used vs new bearings – but this guide is for new assemblies. Use the "Wet" (oiled) specification. Always lubricate bolt threads and the underside of

Always verify with Plastigage or a dial bore gauge before final assembly. The ISX connecting rod bolts have a specific

For a Cummins ISX engine rebuild with new hardware, the torque procedures for main and rod bearings follow a specific "torque plus angle" method. The procedure for new rod bolts involves an additional seating step not required for used bolts. Connecting Rod Bearing Torque Specs (New Bolts)

| Component | Step | Specification | Notes | | :--- | :--- | :--- | :--- | | | 1 | 95 lb-ft | Oil threads | | Vertical Main Bolts | 2 | +90° | Use angle gauge | | Horizontal Bolts | 1 | 40 lb-ft | Cross-bolts | | Horizontal Bolts | 2 | +60° | Critical step |