Cummins ISX Engine Inframe Overhaul Rebuild Kits

Restore Power & Extend Engine Life

Our Cummins ISX Inframe Overhaul Kits are engineered to restore performance, reduce oil consumption, and extend the life of your engine — without removing it from the chassis. Perfect for ISX15, CM870, CM871, CM2250, and CM2350 models, these kits offer a cost-effective solution for in-chassis engine rebuilds.

Kit Includes:

• Pistons with rings (steel/aluminum top), Cylinder liners & seals, Main and rod bearings, Thrust washers, Full gasket sets (upper & lower), Optional: cam bushings, injector seals.
• Designed for single and dual cam ISX engines. Confirm with your ESN or CPL for proper fit.

Why Choose Our Kits?

• OEM-spec components for reliable performance
• Trusted by diesel shops, fleets, and owner-operators
• Fast U.S. shipping and expert tech support

Shop with Confidence

Whether you're a fleet manager or independent mechanic, our ISX rebuild kits deliver quality, fitment, and value. Browse our full lineup below or contact us for expert help.