Peterbilt 389 Discontinued 2024 Release Date. The model 389 r eplaced 379 in 2006 with redesigned headlamps fenders and. In 2006, the famous peterbilt model 389 proudly took its role as the torch bearer for peterbilt’s iconic legacy of power, capability, luxury and style.
Orders for the new 589 and 589 legendary will be taken beginning in august, with production set to begin in january 2024. However, it will likely be kept in production.