Cummins-Westport ISL-G

Peterbilt now offering Cummins Westport nat gas engines on Model 567

The engine emissions are 90 percent lower than the current EPA NOx limit, Peterbilt says, because of a three-way catalyst in the aftertreatment, advanced engine calibration and a closed crankcase ventilation system.

Read More


Driver harassment, the hours rule, Navistar's engine transision, sleep apnea regulations and more industry news items are featured.

Read More