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7/15/2014 1:00:00 PM Write a Letter to the Editor Write a letter to the Editor

Navistar Ships SCR-Equipped Vocational Models

Navistar Inc.

Navistar Inc. has begun customer shipments of International vocational trucks with two versions of its in-house 9.3-liter engine that are equipped with selective catalytic reduction emissions technology, the company announced.

International DuraStar and WorkStar vehicles powered by MaxxForce 9 and MaxxForce 10 diesels — which share a 9.3-liter, 6-cylinder displacement but are spec’d with different power ratings — are delivering fuel-economy improvements of up to 8% over previous versions that relied on exhaust gas recirculation emissions technology, Navistar said in a statement, citing the results of internal testing.

“Our field-test customers are seeing positive results — with our new trucks registering significant fuel-economy improvements,” said Bill Kozek, the company’s president of North America Truck and Parts.

International DuraStar trucks can be spec’d with the MaxxForce 9 in ratings from 275 horsepower and 860 pound-feet of torque up to 330 hp/950 pound-feet torque. WorkStar models are available with the 275 hp/860 pound-foot engine or a MaxxForce 10 spec’d up to 350 hp and 1,150 pound-feet of torque.

The engines were tested in Alaska, Colorado and Arizona across vocational duty cycles that included garbage packing, utility trucks, dump trucks and sewer pumpers, the company said.

By Transport Topics

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