Used Cummins X15 Engines

Find used Cummins X15 assemblies and identify the configuration your truck requires. Review the engine tag, electronics and included equipment alongside the donor and condition information. Keep your installer involved so a similar-looking engine does not become an unexpected conversion project.

Your next replacement starts here.

Open filtered catalog

Sample inventory. A matching make or model is a starting point, not a confirmed fit.

BEFORE YOU ORDER

Make the right match.

  1. Send the full X15 serial number rather than only the truck year.
  2. Confirm the ECM, wiring and accessories included in the price.
  3. Review the offered configuration with your installer before authorizing freight.
Can an X15 replace an ISX15 directly?
Do not assume a direct replacement from the family names. Controls, emissions arrangements and installation details need a separate technical review for the truck and offered engine.
Does the engine include an ECM?
Inclusions depend on the individual listing. Ask for a written package description and identify whether the ECM and any other visible accessories are included.
How can I compare two used X15 engines?
Compare identification, condition evidence, known history, included equipment, written coverage, core terms and freight on the same basis.