This 2021 Peterbilt 579 is a used Class 8 commercial truck, listed in the Sleeper Truck category. The cab includes a 80-inch sleeper. The truck is powered by a 450-horsepower Cummins X15 diesel engine, paired with a 12-speed automated manual transmission. The chassis features a 233-inch wheelbase, and a gross vehicle weight rating of 52,000 lbs. The odometer shows 491,066 miles, and the unit is offered in fair condition. The current asking price is $58,900, representing the dealer's current asking price. This truck is currently offered by Rush Truck Centers. Interested parties should contact the dealer directly to verify availability, confirm specifications, and arrange an on-site inspection before purchase. All specifications, odometer readings, and pricing information are provided by the selling dealer and should be independently verified prior to purchase. This listing was sourced from the dealer's active inventory feed and reflects the stock availability and specifications at the time of the most recent data synchronization.

The 2021 Peterbilt 579 UltraLoft is built for serious over-the-road professionals who demand performance, comfort, and profitability in every mile. Whether you’re an independent owner-operator or managing a growing fleet, this truck is spec’d to maximize uptime, fuel efficiency, and driver satisfaction. Under the hood, you’ve got the proven Cummins X15 — one of the most respected engines on the road. Known for its durability, torque, and fuel efficiency, the X15 delivers the pulling power you need for heavy loads while keeping operating costs under control.The aerodynamic design of the 579 reduces drag and boosts fuel economy. Lightweight components increase payload capacity, helping you generate more revenue per trip. Peterbilt’s reputation for quality and resale value makes this truck a smart long-term investment. If you’re looking for a truck that works as hard as you do — one that keeps you comfortable, profitable, and on schedule — the 2021 Peterbilt 579 UltraLoft with a Cummins X15 and 12-speed Endurant transmission is ready to go the distance.