Cummins ISLe3 & ISLe4 Engine Owner's Manual

This is the owner's manual for Cummins ISLe3 and ISLe4 engines, written for the driver or owner of a truck or bus.

It explains the engine controls and gauges, pre-start and daily checks, the routine care a driver can do, safety information and warning labels, and warranty and service contacts.

What the manual covers

• Engine controls and instruments
• Pre-start and daily checks
• Routine maintenance the driver or owner can do
• Safety information and warning labels
• Warranty and service contacts

Compatibility

• Models: ISLe3, ISLe4
• Engine: 8.9 L inline six
• Emissions: Euro 3 (ISLe3), Euro 4 (ISLe4)
• Manual type: Owner's manual (operator level)

Before you buy

Workshops that need service intervals, torque values and fluid specs should get the Operation and Maintenance 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.