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Cummins introduces ’07 ISL for vocational market

LAS VEGAS, Nev. -- Cummins has introduced its lightweight 2007 ISL to the vocational market.

LAS VEGAS, Nev. — Cummins has introduced its lightweight 2007 ISL to the vocational market.

The engine boasts enhanced productivity and performance with 365 hp of peak power, the company says. Cummins officials also say the new ISL delivers improved fuel economy for vocational customers.

The ’07 ISL is lighter than any other engine in its class, according to Cummins, and it also delivers the highest power-to-weight ratio. Its peak torque level is 1,250 lb.-ft..

Cummins reps also say the new engine delivers low life cycle costs and long-life durability. Maintenance intervals remain unchanged and a new option allows mixer operators to monitor the engine oil level from inside the cab.

The 2007 ISL features a new Cummins High Pressure Common Rail fuel system that the company says delivers higher injection pressures for lower emissions. It also features a patented variable geometry turbocharger that constantly adjusts airflow reducing turbo lag and improving vehicle performance.

“The Cummins ISL is an exceptional engine for mixers,” said 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 new engine incorporates an exhaust gas recirculation (EGR) system and an integrated Cummins diesel particulate filter to meet the 2007 emission standards. This mirrors the technology employed in Cummins’ heavy-duty on-highway engines.

“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,” said Jeff Weikert, executive director, mid-range engineering with Cummins.

The particulate filter is designed to last the life of the engine, officials say. However, it will require periodic service to remove ash buildups. Cummins officials say a typical vocational truck will require the particulate filter to be cleaned every 6,000 hours.

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