1 0 2017 Peterbilt 389 UltraCab Sleeper Semi Truck - 78" Unibilt High Roof, Cummins 450HP Newly Listed At auction Jan. 8 2017 PETERBILT 389 UltraCab Extended Hood Conventional, 78 Inch Unibilt High Roof Sleeper, Cummins X15 Engine, 450 H.P., Engine Brake, 13 Speed Transmission, (Manual), 40,000 Lb. Rear Ends,... ConditionUsedDuty ClassHeavy Duty Sleeper Semi TruckHorse Power450 HPEngine ModelCummins X15Sleeper Size78"SuspensionAir RideRear End40,000 lb 3.36 ratio MLS Number14055838CategorySleeper Semi Trucks Last Updated12/23/2025 LocationSouth Sioux City, NE, US Listed ByTaylor & Martin LLC (855) 546-___ SHOWNUMBERCall Seller Email Seller Save More Info