Torque Spec For Flywheel Bolts On Isx Cummins 251 Updated Jun 2026

For the engines, the updated and most widely recognized torque specification for flywheel bolts involves a two-stage process: Step 1: Tighten to 92 ft-lb (125 N·m) . Step 2: Tighten to a final torque of 184 ft-lb (250 N·m) .

Use clean 15W-40 engine oil on the threads and under the bolt heads . torque spec for flywheel bolts on isx cummins 251 updated