A maintenance manual is available for the Cummins ISX engine at CumminsPartsDirect.com, as of 2015. The website also offers other manuals for the ISX engine, including a service manual and a wiring diagram.
At CumminsPartsDirect.com, users click the ISX/QSX link, and then click the Manuals link. The Cummins ISX QSX Web page appears, and users can click Service Manuals. The Operations and Maintenance Manual is at the top of the list and it is available for about $165.
The Cummins ISX engine is equipped to monitor performance and emissions control with an Electronic Control Module, and Cummins offers up to a 10-year or 200,000-mile extended warranty on each engine.