Cummins ISM400 | 11L On-Highway Diesel Engine
The Cummins ISM400 is an 11-litre, inline six-cylinder, four-stroke diesel engine designed for reliable highway and regional haul operations. With full electronic fuel control and a single overhead camshaft, it delivers 400 HP at 1800 RPM with strong, usable mid-range torque for efficient long-distance performance.
Engine Overview
Displacing approximately 10.8–11.0 litres, the ISM400 uses turbocharging and charge-air cooling to achieve high power density while maintaining durability and fuel efficiency. Its electronically managed platform ensures smooth power delivery, integrated diagnostics, and built-in engine protection across a wide operating range.
Key Technical Features
Inline six-cylinder, 11-litre turbo-aftercooled diesel rated at 400 HP 1800 RPM.
Full electronic management with cruise control compatibility, engine protection strategies, and onboard diagnostics.
Proven ISM platform widely used in trucks and coaches.
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