The Cummins ISB 6.7 Diesel

I have to admit that the Cummins ISB 6.7 Liter diesel engine is the superior model for medium duty power in our school buses. The fit and finish we found with the new international buses we received this year is second to none. The IC people are listening to their customers with new changes made… Continue reading The Cummins ISB 6.7 Diesel