Navistar adds Cummins ISB engine to DuraStar medium-duty trucks

(Photo: Navistar)(Photo: Navistar)

Navistar announced on Tuesday that it has added the Cummins ISB 6.7-liter engine to its International DuraStar medium-duty trucks, according to a report from our sister site, Equipment World.

The engine will also be included in Navistar’s IC Bus CE Series school buses.

The DuraStar trucks and CE Series school buses will be the company’s first medium-duty vehicles with Selective Catalytic Reduction (SCR) emissions aftertreatment technology.

Navistar said it has begun taking orders for the vehicles and will begin initial truck builds later this month. Regular production for the ISB-equipped trucks is scheduled for December.

Bill Kozek, Navistar’s president for its North America Truck and Parts division, said the move does not mean Navistar will discontinue engine production. Kozek noted that Navistar will continue to offer Exhaust Gas Recirculation (EGR) medium-duty engines.

Navistar said it will announce the next steps of its mid-range SCR engine strategy at a later date. Until then, the company will continue to offer EGR-only versions of its mid-range engines.

For more details about Navistar’s mid-range SCR engine strategy, read the full report at