2025 Peterbilt 589, Cummins, X15, 605HP, Fuller 18 Speed Transmission, Sleeper, , , Stock # 1784443 This New 2025 Peterbilt 389 Heavy Haul Sleeper just came in. This truck has a 605 HP Cummins X15 Engine, 18 Speed Transmission, 3.91 Ratio, 302in Wheelbase, Air Trac Suspension. Call or come by Rush Truck Center Houston Northwest and let one of our sales professionals tell you about this or any of our trucks in inventory as well as the great financing options currently available. Delivery available. Se habla Español.