Cummins introduces 2007 ISL for vocational market

Cummins Inc. announced today during World of Concrete 2006 that the 2007 ISL delivers increased performance and fuel efficiency for vocational customers.

The 2007 ISL combines the lightest weight of any engine in its class and the highest power-to-weight ratio, with a peak horsepower of 365 hp and peak torque of 1250 lb-ft. Best-in-class low life cycle costs (maintenance intervals, fuel efficiency, overhaul costs) and long-life durability will be retained. 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 delivers higher injection pressures for lower emissions.

The ISL will continue to feature the patented Variable Geometry Turbocharger (VG Turbo), which constantly adjusts airflow to reduce turbo lag, improve transient response and increase vehicle performance.

"The Cummins ISL is an exceptional engine for mixers," stated Chuck Goode, Cummins Director-Specialty Markets. "The ISL has the lightest weight of any engine in its class, and is available with peak horsepower up to 365 hp, for an unbeatable combination of productivity and performance."

The popular ISL engine will also add proven cooled Exhaust Gas Recirculation (EGR) technology and an integrated Cummins Particulate Filter to meet the U.S. Environmental Protection Agency (EPA) and CARB (California Air Resources Board) emissions standards for 2007. Cummins emissions reduction approach - cooled-EGR and exhaust aftertreatment - will be consistent across all Cummins 2007 on-highway diesel engines for North America. Key in-house technologies enable the engine and aftertreatment system to be totally integrated for optimal reliability, efficiency and lowest cost of ownership.

"Having the right technology applied to the right markets yields optimum reliability. In-house technology combined with a common and stable architecture across product lines assures vocational customers increased uptime," commented Jeff Weikert, Executive Director-MidRange Engineering, Cummins Inc.

The Cummins Particulate Filter is designed to last the life of the engine. The filter automatically collects and oxidizes particulates. When there is not sufficient heat in the exhaust, the Engine Control Module (ECM) actively controls exhaust gas temperatures so the catalytic reaction can take place. The Cummins 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.

The ISL engine will also feature a simple crankcase ventilation management system that 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.

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