Cummins ISM & ISMe Engine Operation and Maintenance Manual

The ISM and ISMe are Cummins' 10.8 litre inline sixes, found in heavy trucks, buses, fire apparatus and construction equipment. This is the Operation and Maintenance Manual for both.

It's the book for owners, drivers and fleet managers. It explains how to read the dataplate (ESN and CPL), lists daily and scheduled maintenance with the intervals, gives the recommended oils, filters and coolant, and includes torque values for the fasteners you touch during servicing. Cold-weather starting, break-in and storage are covered too.

What the manual covers

• Engine and system identification (ESN, CPL and dataplate)
• Daily and scheduled maintenance intervals
• Recommended oils, filters and coolant
• Torque values for service fasteners
• Cold-weather starting and operation
• Break-in and storage

Compatibility

• Models: ISM, ISMe
• Engine: 10.8 L inline six
• Manual type: Operation and maintenance manual

Before you buy

There are no repair or diagnostic procedures in this manual. If you need to fix something, you'll want a troubleshooting and repair manual instead.

Your engine's dataplate shows the engine model, the engine serial number (ESN) and the CPL number. Compare those with the models above. If you're not sure, email us the dataplate details and we'll check for you.

File format

Digital download, delivered as a ZIP file. Unzip it before opening. Opens on a computer, tablet or phone.

We're an independent seller and are not affiliated with or endorsed by Cummins. Brand and model names are used only to identify the engines this manual covers.