Navistar announced it's continuing to expand the availability of selective catalytic reduction emissions technology with additions to its severe service and medium-duty product lines.
 
The company’s medium-duty SCR transition began last September 2013 with the International DuraStar and the Cummins ISB 6.7 liter engine. MaxxForce 9 and MaxxForce 10 engines with SCR will be available exclusively on the International DuraStar and International WorkStar vehicles.
 
“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 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.