The Paccar TX-12 Pro transmission now is available with the MX-13 engine in Models 579, 567, and 589 in a new combination for ...

Peterbilt is now offering the Paccar TX-12 Pro automated transmission with the Paccar MX-13 engine in the Models 579, 567 and ...

Potential cost savings in buying a used truck. How market demand and supply affect truck availability. Test drive results for a 2021 Peterbilt 567. Why buy a used truck? Why not? If that dumper ...

Ranked The PACCAR MX-13 produces as much as 510 horsepower and 1,850 pound-feet of torque and is found in 567, 579, and 589 ...