Cummins announces heavy-duty ratings for 2007 ISX, ISM engines

May 1, 2006
CUMMINS Inc announced at the Mid-America Trucking Show the 2007 ratings for its heavy-duty ISX and ISM engines. With over 30 billion miles of proven cooled-EGR

CUMMINS Inc announced at the Mid-America Trucking Show the 2007 ratings for its heavy-duty ISX and ISM engines. With over 30 billion miles of proven cooled-EGR experience, the 2007 ISX and ISM build on the proven performance, reliability and durability of today's heavy-duty engines.

A full lineup of ratings will be available for the 2007 ISX and ISM. Three new ratings for the 2007 ISX were introduced: the ISX 425 SmartTorque (ST), the ISX 485 ST, and the ISX 600.

The ISX 425 SmartTorque provides extra torque — 1550/1750 lb-ft of extra torque. This higher-operating torque level will allow drivers to stay in top gear longer, maintain road speed better and shift less often on grades. This SmartTorque rating will increase the percentage of time in top gear along with providing increased driver satisfaction. Increased time in top gear and less shifting mean better fuel economy. The ISX 425 ST rating will be suited for truckload fleets. The ISX 485 is designed for the premium truckload market.

For owner/operators, Cummins will offer the ISX 600 with 1850 lb-ft of torque. This will be the ideal rating for heavy haulers and owner-operators who demand extra performance.

All of the new ratings are compatible with a range of automated and manual transmissions. Customers selecting the ISX 425 SmartTorque will have options for selecting various transmissions to optimize for best operating efficiency in their specific fleet. The ISX 425 SmartTorque is ideally suited for both direct and overdrive transmissions.

According to Jeff Jones, vice-president of sales and market communications, “We continue to expand our ratings to deliver every advantage for our customers. These additional ratings hit the sweet spot for two very important but different sets of Cummins customers, with specific advantages for the needs of their very different business models. Those involved in truckload operations where the absolute best fuel economy makes the difference in business performance — and those who need extra horsepower for demanding loads.”

These ratings are enabled by a combination of Cummins proven — and highly successful — engine technologies, including enhancements to cooled exhaust gas recirculation (EGR), combined with high injection pressures, the ability of the particulate filter to maximize use of passive regeneration, the Holset VG turbocharger with electric actuation, plus integrated engine and aftertreatment controls.

Both the ISX and ISM for 2007 will be available in limited production in fourth-quarter 2006, with full production beginning in January 2007.

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