Peterbilt supplies 530-hp ISX

Jan. 1, 2002
The Cummins ISX engine now comes in a 530-horsepower rating for Peterbilt Models 387, 379, 378, and 357, Peterbilt Motors Co announced. The engine is

The Cummins ISX engine now comes in a 530-horsepower rating for Peterbilt Models 387, 379, 378, and 357, Peterbilt Motors Co announced. The engine is uprateable to 600 horsepower with no hardware changes.