Cummins Introduces 2007 ISL For Vocational Market

Posted on January 23, 2006

Cummins Inc. has debuted its 2007 ISL diesel for vocational customers. The 2007 ISL has a peak horsepower of 365 hp and peak torque of 1250 lb-ft. Maintenance intervals will be unchanged and a new option allows mixer operators to monitor the engine oil level from inside the cab - eliminating the need for daily manual inspection. The 2007 ISL will also feature an enhanced Cummins High Pressure Common Rail (HPCR) fuel system, which reportedly delivers higher injection pressures for lower emissions. The ISL will continue to use the patented variable geometry turbocharger, and adds cooled exhaust gas recirculation (EGR) technology and an integrated Cummins particulate filter to meet the U.S. EPA and CARB emissions standards for 2007.

Cummins said the particulate filter, designed to last the life of the engine, automatically collects and oxidizes particulates. When there is not sufficient heat in the exhaust, the engine control module actively controls exhaust gas temperatures so the catalytic reaction can take place. The particulate filter will require periodic service to remove the ash content. A typical vocational truck will need this filter serviced only once every 6,000 hours.

Further, the ISL engine will also feature a simple crankcase ventilation management system that Cummins said virtually eliminates any oil carryover from the engine. The average vocational truck will need to replace the low-cost Enviroguard coalescing filter at every third oil change.