Cummins Isx15 Flywheel Housing Torque Specs — Full & Latest

The flywheel housing has between 12 to 16 bolts (common is 14). The sequence prevents warpage.

When in doubt, use for any ISX15 with the larger M12 flange-head bolt, a clean thread, a calibrated torque wrench, and a documented star pattern. A mis-torqued flywheel housing on an ISX15 will lead to chronic rear oil leaks and potential transmission input shaft failure – both are avoidable with 20 minutes of careful torqueing. cummins isx15 flywheel housing torque specs