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Model 579

The Peterbilt 579 is built for the future, designed with driver feedback in mind. From long-haul sleeper cabs to regional day cabs and vocational applications, the 579 excels in every task. Industry-leading fuel efficiency, cutting-edge technology, and a driver-focused interior ensure comfort, productivity, and unmatched performance mile after mile.

  • Class: 8
  • Used for: On-Highway
  • Max Horsepower: Up to 605 hp
  • Peak Torque: Up to 2,050 lb.-ft.
  • Front Axle & Suspension: 12,000 - 14,600 lbs.
  • Rear Axle & Suspension: 21,000 - 46,000 lbs. (available lift axles)
  • Sleeper: 44" - 80"
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Driver-designed Efficiency: The All New Peterbilt 579

Built with the future in mind, the Peterbilt 579 redefines what a truck can be. Over 100 user tests and interviews with drivers, technicians, safety managers, and maintenance crews informed every aspect of its design. Whether you're conquering long hauls in a sleeper cab, delivering freight regionally in a day cab, or tackling vocational tasks like tanker or aggregate hauling, the 579 is built to excel.

This isn't just another Peterbilt. It's a testament to driver feedback, boasting industry-leading fuel efficiency, cutting-edge technology, and a driver-focused interior designed for comfort and productivity. Extensive million-mile endurance tests and real-world validation ensure the 579 delivers unmatched performance mile after mile.

Work Harder, Spend Less: The PACCAR Powertrain Advantage

Haul more for less with the PACCAR powertrain, a fully integrated system designed to maximize both payload capacity and fuel efficiency.

Strength Meets Efficiency

The PACCAR powertrain seamlessly combines the durable PACCAR MX engines with DX-40k tandem drive axles. This translates to effortless pulling power, improved efficiency, and better fuel economy – all while keeping drivers comfortable.

PACCAR Engines: Powerhouse of Performance

PACCAR MX-13, MX-11, and PX-9 engines are the workhorses behind this efficiency. They leverage a combination of proven technologies and cutting-edge innovations to deliver maximum miles per gallon and minimize fuel consumption, emissions, and noise. Variable speed components and optimized combustion ensure smooth operation and peak performance.

Built to Haul, Built to Last

PACCAR MX engines excel in both linehaul and vocational applications, offering exceptional reliability and a long history of proven performance.

PACCAR Powertrain Highlights

  • Wide gear ratios for easy maneuvering at low speeds.
  • High-performance axles that efficiently transfer engine power to the road.
  • Optimized fuel system for cleaner combustion and reduced noise.
  • Broad torque curve delivering up to 1,850 lb.-ft. of torque at low RPMs for effortless pulling.
  • Extended service intervals to minimize downtime and maintenance costs.

Slice Through the Wind, Save at the Pump: The 579's Cutting-Edge Aerodynamics

The Model 579 isn't just another truck – it's a fuel-saving machine. Peterbilt packed it with the most advanced aerodynamic features available, designed to maximize fuel efficiency and keep your money in your pocket.

  • Sleek Design, Superior Performance: The boldly sculpted grille and bumper aren't just for looks – they work together with the lowered front end to cut through wind resistance. A strategically placed air dam further enhances aerodynamics without sacrificing ground clearance.
  • Smarter Features, Smoother Rides: Sculpted mirrors not only improve airflow but also give drivers a clearer view while backing up. A-pillar fairings manage air around the cab, reducing wind noise and creating a quieter, more comfortable driving experience.
  • Every Detail Counts: Wheel well closeouts accommodate various tire options without compromising aerodynamics. Tip-out chassis fairings provide easy, tool-free access for maintenance, saving you valuable time on the road.

Light Up the Night, Conquer Any Condition

The Model 579 isn't afraid of the dark. Industry-leading LED headlights deliver superior light coverage and uniformity, ensuring excellent visibility. Built-in heaters keep the lenses clear in bad weather, and an optional LED fog and cornering light system further enhances visibility in all conditions.

Your On-the-Road Oasis: The Model 579 Sleeper Cabin

The Model 579 doesn't just get you there, it makes getting there comfortable. Step inside the new UltraLoft sleeper and experience:

  • Unmatched Comfort: With 8 feet of headroom and a class-leading 70 cubic feet of storage, the UltraLoft feels more like a home office than a truck cab. Relax in the industry's largest mattress and enjoy the most legroom in its class.
  • Tech-Ready Entertainment: Mount a 32-inch TV – the biggest in its class – and heat up a meal in the 1.1 cubic foot microwave, also a class leader. A hidden foldaway ladder makes bunk access convenient.
  • Peace and Quiet: Sound abatement technology and independent climate control create a tranquil environment. Optional features like a fuel-fired heater and multiple no-idle hoteling options keep you comfortable on long hauls.

Drive in Style and Comfort

The driver's experience is just as important. The Model 579 boasts:

  • Reduced Glare: Dark dash and door uppers minimize glare for improved focus on the road.
  • Smart Features, Effortless Control: Larger controls, spacious cupholders with storage, and a new multi-function steering wheel put everything you need at your fingertips.
  • Industry-Leading Display: The massive 15-inch digital display offers a user-friendly interface and integrates with Advanced Driver Assistance Systems (ADAS) for a safer, more informed driving experience.

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