Peterbilt 389

The Peterbilt 389 is an extended-hood conventional on-highway semitractor that Peterbilt introduced in 2007 to replace the Model 379 after that truck's 20-year production run. It shared its cab with the 2005 to 2007 379 but was given a longer hood, the longest of any Peterbilt conventional, along with upgraded headlamps and aerodynamic improvements. A shorter 123-inch version was later designated the Model 388. Peterbilt built the last Model 389 during 2024, ending the 57-year production of the 359, 379 and 389 family, and the Model 589 succeeded it as the flagship conventional.