Paccar Chairman/CEO Mark Pigott, right, shakes hands with Mississippi Gov. Haley Barbour after lifting the first shovels of dirt at Paccar's new engine plant, which will produce 12.9-liter (shown) and ...

“Our customers are looking for better options to successfully navigate the complexities of the evolving regulatory landscape and Kenworth models equipped with PACCAR’s MX-13 CARB-compliant engine ...

The Paccar TX-12 Pro automated transmission is now available with the Paccar MX-13 engine for Kenworth’s T680, T880, and W990 models. This transmission is designed to optimize performance for both on- ...

COLUMBUS — PACCAR announced that the Environmental Protection Agency (EPA) has certified the PACCAR MX 12.9-liter diesel engine to the 2010 emission standards. The PACCAR MX engine certification 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 ...

Kenworth will make powertrains with the Paccar TX-12 PRO automated transmission and Paccar MX-13 engine combination available to T680, T880 and W990 customers, the truck maker said. The TX-12 PRO ...

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 ...

Kenworth’s PACCAR TX-12 PRO and TX-18 PRO automated transmissions are now available on T880 and W990 trucks equipped with PACCAR engines and a rear engine power take-off (REPTO). The move allows these ...

PACCAR has been granted a patent for a diagnostic method to identify misfire conditions in individual engine cylinders of turbocharged diesel engines. The method involves using pressure and crankshaft ...

Kenworth and Peterbilt may seem like rivals in the semi world, but they're owned by the same company. Still, there are some big differences between them.

CHICAGO, Oct 24 (Reuters) - Paccar Inc. , the No. 2 U.S. truckmaker, said on Tuesday that a report of problems with new low-emission diesel engines from Caterpillar Inc. was overblown. In a conference ...