X15 diesels showed quick throttle response and strong acceleration on the TRC's tracks. Engine brakes were impressively strong, even at low rpm's. A parade of X15-powered tractor-trailers led the ...

The first RAM with a Cummins engine under the hood was launched in 1989 and has continued to evolve, now in it's fifth generation. In 2003, the popular heavy-duty truck offered the Cummins third ...

Technicians and operators of Cummins X15 engines now have more ways to detect and address faults, from downloadable troubleshooting manuals and updated fault code references to affordable OBD2 ...