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The ISL for 2007 runs cleaner, delivers superior performance and maintains fuel economy comparable to EPA '02 compliant and certified engines. Ratings range from 345-365 hp. Add the optional compression brake, and it even stops better. How did we make these improvements and still meet stringent emissions controls? With a totally integrated system that includes our proven cooled-EGR subsystem, a High Pressure Common Rail fuel injection system, our patented VG Turbo, Cummins Particulate Filter and a crankcase ventilation system.

And that's just the start of all the features the ISL has to help your vehicles, and your business, run smoother.

The ISL is also designed to keep your maintenance to a minimum and your productivity in overdrive.

All backed by the best customer support in the business.

 
ISL Ratings
Engine ModelAdvertised hp (kW)Peak Torque lb-ft (N•m) @ rpm
ISL 365365 (272)1250 (1695) @ 1400
ISL 345345 (257)1150 (1559) @ 1300
 Additional ratings may be available. Check with your local Cummins distributor or dealer.

The superior performance of the ISL comes from a constant flow of high-pressure fuel, injected with precise timing for optimum burn efficiency. Regardless of engine speed, the pressure inside the High Pressure Common Rail system does not fluctuate. An increased number of injection events per cycle results in an ISL that runs both stronger and quieter than ever before.
Specifications.
Advertised Horsepower345-365 bhp257-272 kW
Peak Torque1150-1250 lb-ft1559-1695 N•m
Governed Speed2100 rpm
Clutch Engagement Torque550 lb-ft746 N•m
Number of Cylinders6
Oil System Capacity7.3 U.S. gallons27.6 liters
System Weight1,685 lb764 kg
Engine (Dry)1,635 lb742 kg
Aftertreatment*50 lb23 kg

*Increase over today's muffler

 
  • Enhanced High Pressure Common Rail Fuel System - Delivers optimum balance of performance, emissions control and fuel economy across the entire operating range.
  • Full-Authority Electronic Controls - Higher microprocessor capacity and speed for optimum control of the engine and aftertreatment.
  • Cooled Exhaust Gas Recirculation - Lowers combustion temperatures for reduced emissions and optimized mpg.
  • Variable Geometry Turbocharger - Enhanced response and control with electric actuation for infinite adjustment, providing exact boost across the operating range. Sliding-nozzle design increases reliability, durability.
  • Cummins Particulate Filter - Fully integrated for uncompromising performance, reliability. Reduces particulate matter 90%.
  • Crankcase Ventilation System - coalescing filter only needs replacement every 3rd to 4th oil change.
  • Low Maintenance - Long oil change intervals maintained. Cummins Particulate Filter will go 200,000-400,000 miles (320,000-640,000 km) in a typical duty cycle for most vehicles before it needs cleaning.
  • Heavy-Duty Features - Replaceable wet liners, roller followers, two-piece steel articulated pistons, by-pass oil filtration, and targeted piston cooling.

The ISL has one of the highest power-to-weight ratios in its class and is lighter than other engines in its class. Combine that with full-authority electronic controls, a High Pressure Common Rail fuel system, 24-valve design and our exclusive VG Turbo, and you've got an engine that delivers more miles per gallon as it delivers every load. Cummins PowerSpec program lets you set engine-operating parameters for your ideal combination of performance and fuel economy, on every truck.

 

See your Owner's Manual for every detail. And when it's time for maintenance, be sure to visit your authorized Cummins distributor or dealer.
 Miles KilometersHoursMonths
Oil and Filter20,000 mi / 32,000 km5006
Primary Fuel Filter20,000 mi / 32,000 km5006
Secondary Fuel Filter40,000 mi / 64,000 km1,00012
Coolant FilterNone*None*None*
Overhead Adjustment150,000 mi / 241,500 km5,00048
Coalescing Filter80,000 mi / 128,000 km2,00024
Particulate Filter Cleaning200,000-400,000 mi (320,000-640,000 km)

*If engine is equipped with an optional coolant filter, it will need to be replaced on the same intervals as the oil filter.

The Cummins Particulate Filter is designed to last the life of your engine. Regeneration is fully automated and controlled by the ECM.

 
For complete maintenance information, please consult your Owner's Manual or Operations and Maintenance Manual.

Our customer care programs are unmatched by anyone else in the industry. Every Cummins customer is supported by:

  • The largest parts and service network in the industry with over 3,500 authorized repair locations everywhere throughout the U.S. and Canada
  • Accelerated problem diagnosis at every Cummins QuickServe® location
  • 24/7 access to Cummins
  • 1-800-DIESELS (1-800-343-7357)

For your nearest authorized Cummins service provider, see our service locator.

 



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