LISLE, Ill. — Navistar has announced its International LoneStar is now available with the Cummins ISX15 engine, completing the truck maker’s transition to an SCR heavy-duty product line.

Navistar began its transition to selective catalytic reduction (SCR) in December 2012.

“We now offer a full lineup of SCR product offerings for our Class 8 customers and we have completed each launch on time – and with the highest levels of quality,” said Bill Kozek, president North America Truck and Parts, Navistar. “Throughout this transition, we have seen an improvement in customer confidence reflected in our Class 8 order share and we are already starting off strong with our medium-duty transition as we move into 2014.”

Navistar says it has received orders for more than 11,500 trucks with the Cummins ISX15 engine since December 2012, and more than 6,000 orders for MaxxForce 13 engines with SCR since March 1, 2013.

The International LoneStar is available in ratings from 500 hp/1,850 lb.-ft. up to 550 hp/2,250 lb.-ft.

“Customers specifically asked us for 15-litre power in the LoneStar,” said Kozek. “This combination is what originally made the LoneStar popular and with the re-launch of the LoneStar with the Cummins ISX15 and SCR technology, our customers can turn heads and do so with reduced emissions and increased efficiency.”