The PACCAR MX DEF software update raises final inducement speed to 25 mph and extends the repair window for MX-11 and MX-13 ...

Paccar will roll out updated software for Kenworth and Peterbilt trucks equipped with MX-11 and MX-13 engines to reflect revised U.S. Environmental Protection Agency guidance on diesel exhaust fluid ...

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

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 ...

Cummins and PACCAR are updating diesel engine software to give operators more time to address certain DEF-related issues ...