Peterbilt Motors Company announced Tuesday its availability of a new lightweight engine designed for endurance, quieter performance and fuel efficiency. The PACCAR MX-11 engine is available on the ...

Peterbilt said the new MX-13 version meets the CARB Omnibus Regulation and features redesigns of internal hardware and the aftertreatment system to effectively reduce NOx emissions. The larger volume ...

Peterbilt has announced the availability of Paccar TX-12 automated transmissions with Paccar PX-9 engines. The spec is for Peterbilt medium duty Models 548, 537 and 536. Peterbilt said both the ...

This Peterbilt 579 is powered by the Cummins X15N natural gas engine – Cummins' latest, greatest and biggest natural gas engine. Peterbilt has fully integrated the X15N with its Model 579 powertrain ...

Peterbilt displayed both heavy-duty and medium-duty trucks with the new PACCAR engines during the 2007 Great American Trucking Show that was held August Peterbilt displayed both heavy-duty and ...

Peterbilt announced the new MX-13 is available for order in its Models 579, 567, and 589 trucks. Kenworth announced that the new CARB-compliant engine is now available to order on its T680, T880, and ...