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International Adds SCR to its 9-liter and 10-liter Engines

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July 1, 2014 by Minuteman Trucks

In March of this year, Navistar announced that the company will add selective catalytic reduction (SCR) emissions technology to its high horsepower mid-range engines. Starting July 11th they will begin shipping DuraStars and WorkStars with these engines to customers as part of a multi-plant, multi-model launch. They’ve had a number of customer field test units running for months, and the reactions have been extremely positive.

N9 - N10_web

The N9 and N10 engines bring significant benefits:

  • Fully 2010 emissions compliant, certified and running at 0.2 g/bhp/hr NOx
  • Fuel economy improvement of up to 8% vs. previous generation engine, adding more money to our customers’ bottom line
  • 90% reduction in soot, which results in fewer active regenerations and excellent reliability, responsiveness and power

 

The company’s medium-duty SCR transition began in September 2013 with the International DuraStar and the Cummins ISB 6.7 liter engine.

“Our medium-duty transition to SCR started strong with our DuraStar with Cummins ISB6.7 and we have high expectations for this chassis/engine combination as we see the construction market continue to rebound,” said Bill Kozek, President, North America Truck and Parts, Navistar. “We also know a number of our customers require more horsepower and torque and we’re pleased to offer these customers an expanded engine choice by adding SCR to our 9-liter and 10-liter engines.”

The International TerraStar, 2014 ATD Medium-Duty Truck of the Year, will also be offered with added enhancements. The Allison Optimized 1000 Series transmission with an optional 6th speed is now available exclusively on the TerraStar. With the addition of the 6th speed, the close ratio, fully automatic transmission offers improved fuel economy, lower engine noise and optimized performance. The TerraStar also features a refined front suspension with a redesigned front spring and bumper. The suspension offers a smoother ride especially when driving over rough terrain.

All International vocational trucks also feature the International Diamond Logic electrical system, a customizable truck computer module that integrates communication between the truck and exterior equipment like plows, dumps and spreaders. Navistar offers new Diamond Logic feature bundles for the vocational market to help customers quickly identify the most widely used controls and then customize to their needs.

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