Cummins Isx Main And Rod Bearings Torque Specs New Guide

Cummins ISX Main and Rod Bearings Torque Specs: A Comprehensive Guide

When in doubt, measure twice, torque once, and verify clearance with Plastigage. cummins isx main and rod bearings torque specs new

How to measure:

Part 1: Cummins ISX Main Bearing Torque Specs (New)

The main bearing caps on an ISX are cross-bolted (side bolts plus vertical bolts). This is a four-step process. Failure to follow the sequence will warp the main bore. Cummins ISX Main and Rod Bearings Torque Specs:

• 2000-2003 Cummins ISX: Main bearing cap bolts: 100-110 ft-lbs (136-149 Nm); Rod bearing cap bolts: 40-50 ft-lbs (54-68 Nm)
• 2004-2010 Cummins ISX: Main bearing cap bolts: 110-120 ft-lbs (149-163 Nm); Rod bearing cap bolts: 45-55 ft-lbs (61-75 Nm)
• 2011 and later Cummins ISX: Main bearing cap bolts: 120-130 ft-lbs (163-177 Nm); Rod bearing cap bolts: 50-60 ft-lbs (68-81 Nm)

Phase 3: Main Bearing Torque Specs (New Bearings)

This varies significantly. Use the chart below based on your engine family. 2000-2003 Cummins ISX: Main bearing cap bolts: 100-110