Navistar details market expansion

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The MaxxForce15 is available in the International ProStar+ with up to 500 hp and 1,850 lb.-ft. of torque.The MaxxForce15 is available in the International ProStar+ with up to 500 hp and 1,850 lb.-ft. of torque.

Navistar officials said the recent introduction of its 15-liter engine, its developments in alternative fuel engines, and growth in other areas have enabled the company to establish itself at a much broader level of industry leadership than five years ago.

“With the addition of our MaxxForce 15, our line-up of MaxxForce Advanced EGR big bore engines truly differentiates us from the competition,” said Jim Hebe, Navistar’s senior vice president, North American sales operations, during a trade event in Louisville, Ky. “The introduction of the ProStar+ with MaxxForce 15 now gives customers the ultimate combination in durability and power.”

Navistar is the only heavy-duty engine maker using exhaust gas recirculation without selective catalytic reduction to meet federal emissions regulations.

The MaxxForce15 for the International ProStar+ is available with up to 500 hp and 1,850 lb.-ft. of torque. International PayStar heavy-duty vocational trucks are available with MaxxForce 15 up to 550 hp.

Navistar also demonstrated a prototype 2011 International ProStar+ powered by a 13-liter MaxxForce dual fuel engine powered by diesel and liquefied natural gas.

In partnership with Clean Air Power Ltd., Navistar has built and tested the 122-inch BBC tractor with a 430-hp, 1,550 lb.-ft. engine that uses diesel pilot injection for combustion on the compression stroke and mixes air and LNG on the intake stroke. The result is an engine that runs on a mixture of 15 percent diesel and 85 percent natural gas, Hebe said.

The dual fuel MaxxForce engine includes minimal changes to the stock diesel engine other than the addition of a natural gas injection system. Changes to the chassis include the addition of a 26-inch diameter, 119-gallon standard LNG tank that provides a 400-mile range, a coolant heated fuel vaporizer, and an LNG regulator and filter.

In recent years, Navistar introduced diesel-electric hybrid versions of its International DuraStar and WorkStar trucks, as well as diesel-electric hybrid and plug-in hybrid versions of its buses. Last summer, the company introduced the all-electric eStar truck, which has zero tailpipe emissions and a 100-mile range.

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Officials said the company’s “fluid economy” measurement continues to show its EGR solution to emissions reduction is more efficient than SCR engines, which require the addition of diesel exhaust fluid. Independent, third-party testing found the ProStar+ with a MaxxForce engine demonstrated nearly 1 percent to 2.5 percent better fuel economy than two comparable competitive trucks using SCR engines.

“We are a different company,” said Jack Allen, president of the North American Truck Group at Navistar. “We now have a full-line-up of proprietary big bore engines and the most comprehensive line-up of fully integrated trucks and engines in the industry. We’ve grown into new markets, new geographies, and we have great momentum to continue that growth.”

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