CUMMINS X15 450HP 2023 Peterbilt 579 ULTRALOFT now for sale! This 2023 has an automatic 12 speed transmission; HUGE Deer Guard; Air Slide 5th Wheel; Heated Mirrors; full fairings; all aluminum wheels; Adaptive Cruise Control; Hill Start Assist as well as a Spacious 80in Double Bunk Sleeper with TV and Microwave prep area; Inverter; Rear Bunk Controls and much more! Contact your local sales rep today to schedule a test drive and inquire on our in house financing! Vehicle specifications; options; mileage; and availability are subject to change. While every effort is made to ensure accuracy all information should be verified with a sales professional prior to purchase.