Cummins ISX/X15 Cryo-Treated Head Bolt Kit | IPD

Cummins ISX/X15 Cryo-Treated Head Bolt Kit | IPD Available For: Cummins ISX and X15 Engines Upgrade your next cylinder head install with IPD's cryo-treated head bolt kit for the Cummins ISX and X15. These head bolts are engineered to deliver proper and even clamping forces across the cylinder head, helping maintain a consistent head gasket seal and keep your engine running reliably. Why cryo-treated? Cryogenic heat treatment is a precisely engineered process. The material is taken down to approximately -310°F and held in liquid nitrogen to remove residual stresses, then ramped back to room temperature and finished with a mild heat treatment process. The result is a more stable, stress-relieved fastener that supports dependable, even clamping load across the head. Questions about fitment or your rebuild? Call Texas Truck Market — 832-867-3345