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Navistar’s Selective Catalytic Reduction (SCR) efforts are finally destined for its medium-duty chassis.
The company announced Tuesday the expansion of its SCR partnership with Cummins, and rolled out the Cummins ISB 6.7-liter engine in International DuraStar medium-duty trucks and IC Bus CE Series school buses effective immediately.
“The ISB will complement our existing engine offerings and will be a catalyst as we look to improve our medium-duty truck and bus business in 2014 and beyond,” Jack Allen, Navistar executive vice president and chief operating officer, says.
Navistar says it will continue to offer EGR-only versions of its mid-range engines utilizing its medium-duty emissions credits, adding the company has no plans to implement a proprietary medium-duty SCR engine.
International DuraStar trucks and IC Bus CE Series school buses equipped with the Cummins ISB will be Navistar’s first medium-duty vehicles with SCR emissions aftertreatment. The company will begin taking orders immediately for trucks and buses with the Cummins ISB with initial truck builds later this month.
Regular production for trucks is scheduled for December.
Regular production for CE Series school buses is scheduled for late-January.
“Customers seeking commonality in their engine line-up have expressed significant interest in combining the Cummins ISB engine with our chassis and we anticipate strong demand and orders as a result,” Bill Kozek, Navistar president, North America Truck and Parts, says.
Kozek says the appeal of expanding its Cummins partnership with the ISB was three-fold.
“It allows us to go to market today with a proven, medium-duty SCR solution,” he says. “Second, the Cummins ISB is proven, mature and accepted technology with over 10 million units on the road today that our customers know and are familiar with. And third, we have an existing, proven track record with the ISB thanks to our Blue Diamond partnership with Ford in Central and South America.”
Christy House, On-highway Marketing Communications Director for Cummins, says Cummins and Navistar have enjoyed a collaborative partnership for more than 75 years, which made their working together on the medium-duty venture practical.