The Cummins ratings for 2007 heavy-duty engines include three new ISX models — the 425 ST (Smart Torque), the 485 ST, and the straight ISX 600. The new ISM features enhanced fuel economy, the company ...

Graham and Suzanne O’Donnell, of Phoenix, own this 2006 Peterbilt 379, powered by a Cummins ISX. Though the truck is all stock now, the couple plans to add a bull bar, 7-in. straight pipes and other ...

Cummins is well on the way with its engines for 2007 and has some 80 units involved in on-highway testing programs. These engines are in field tests in fleet environments as diverse as garbage ...

LOUISVILLE, Ky. – Cummins has announced three new horsepower ratings for its 2007 ISX, including a new 600 hp offering. The company also announced it will be offering a full lineup of horsepower ...

Cummins Inc. has announced the addition of the new ISX 385 ST to its heavy-duty on-highway product line. Like all ISX ratings, the 385 ST is compliant to the new emissions standard. "We are pleased to ...