Whether you’re rushing paramedics to an accident scene or responding to a brush fire, you can count on Cummins ISB. Every call. Every time. The 2007 ISB combines increased displacement (5.9 liters to 6.7 liters) and High Pressure Common Rail fuel injection with our patented Variable Geometry Turbo to deliver stronger performance at every rpm. Multiple injection events per cycle also make the ISB run extremely quiet.

Of course, the ISB also meets 2007 emissions requirements. The fact that it runs both stronger and cleaner is the result of our totally integrated design. Features include a proven cooled-EGR subsystem, High Pressure Common Rail fuel injection, the VG Turbo, Cummins Particulate Filter and a crankcase ventilation system, all developed to work together under the control of a single, more powerful ECM. The VG Turbo also doubles as an exhaust brake to increase stopping power. The result is an engine that delivers optimum performance, reliability, durability and fuel efficiency with increased safety.

The ISB is also designed to keep operating costs in check, with long maintenance intervals and excellent fuel economy. Ratings range from 260-350 hp.